699822816 has 192 divisors, whose sum is σ = 2425489920. Its totient is φ = 171048960.

The previous prime is 699822811. The next prime is 699822821. The reversal of 699822816 is 618228996.

699822816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (699822811) and next prime (699822821).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699822811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122880 + ... + 128448.

It is an arithmetic number, because the mean of its divisors is an integer number (12632760).

Almost surely, 2^699822816 is an apocalyptic number.

699822816 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 699822816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1212744960).

699822816 is an abundant number, since it is smaller than the sum of its proper divisors (1725667104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

699822816 is a wasteful number, since it uses less digits than its factorization.

699822816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5617 (or 5609 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 699822816 is about 26454.1644358691. The cubic root of 699822816 is about 887.8290800005.

The spelling of 699822816 in words is "six hundred ninety-nine million, eight hundred twenty-two thousand, eight hundred sixteen".