699367680 has 216 divisors, whose sum is σ = 2640193920. Its totient is φ = 169512960.

The previous prime is 699367663. The next prime is 699367681. The reversal of 699367680 is 86763996.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (699367681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123961 + ... + 129479.

It is an arithmetic number, because the mean of its divisors is an integer number (12223120).

Almost surely, 2^699367680 is an apocalyptic number.

699367680 is a gapful number since it is divisible by the number (60) 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 699367680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1320096960).

699367680 is an abundant number, since it is smaller than the sum of its proper divisors (1940826240).

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

699367680 is a wasteful number, since it uses less digits than its factorization.

699367680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5557 (or 5540 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The square root of 699367680 is about 26445.5606860584. The cubic root of 699367680 is about 887.6365690781.

The spelling of 699367680 in words is "six hundred ninety-nine million, three hundred sixty-seven thousand, six hundred eighty".