696539520 has 256 divisors, whose sum is σ = 2491819200. Its totient is φ = 183877632.

The previous prime is 696539497. The next prime is 696539551. The reversal of 696539520 is 25935696.

696539520 is a `hidden beast` number, since 6 + 96 + 5 + 39 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2989324 + ... + 2989556.

Almost surely, 2^696539520 is an apocalyptic number.

696539520 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 696539520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245909600).

696539520 is an abundant number, since it is smaller than the sum of its proper divisors (1795279680).

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

696539520 is a wasteful number, since it uses less digits than its factorization.

696539520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 45.

The square root of 696539520 is about 26392.0351621469. The cubic root of 696539520 is about 886.4384535877.

The spelling of 696539520 in words is "six hundred ninety-six million, five hundred thirty-nine thousand, five hundred twenty".