696690624 has 224 divisors, whose sum is σ = 2194560000. Its totient is φ = 194933760.

The previous prime is 696690623. The next prime is 696690637. The reversal of 696690624 is 426096696.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (696690623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4675702 + ... + 4675850.

Almost surely, 2^696690624 is an apocalyptic number.

696690624 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 696690624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1097280000).

696690624 is an abundant number, since it is smaller than the sum of its proper divisors (1497869376).

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

696690624 is a wasteful number, since it uses less digits than its factorization.

696690624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 696690624 is about 26394.8976887580. The cubic root of 696690624 is about 886.5025488796.

The spelling of 696690624 in words is "six hundred ninety-six million, six hundred ninety thousand, six hundred twenty-four".