699224064 has 208 divisors, whose sum is σ = 2327554560. Its totient is φ = 181370880.

The previous prime is 699224063. The next prime is 699224077. The reversal of 699224064 is 460422996.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699224063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 945807 + ... + 946545.

Almost surely, 2^699224064 is an apocalyptic number.

699224064 is a gapful number since it is divisible by the number (64) 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 699224064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1163777280).

699224064 is an abundant number, since it is smaller than the sum of its proper divisors (1628330496).

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

699224064 is a wasteful number, since it uses less digits than its factorization.

699224064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 699224064 is about 26442.8452326901. The cubic root of 699224064 is about 887.5758058372.

The spelling of 699224064 in words is "six hundred ninety-nine million, two hundred twenty-four thousand, sixty-four".