697503725 has 12 divisors (see below), whose sum is σ = 866233620. Its totient is φ = 557145600.

The previous prime is 697503721. The next prime is 697503739. The reversal of 697503725 is 527305796.

It can be written as a sum of positive squares in 6 ways, for example, as 21659716 + 675844009 = 4654^2 + 25997^2 .

It is not a de Polignac number, because 697503725 - 2² = 697503721 is a prime.

It is a super-2 number, since 2×697503725² = 973022892777751250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697503721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4580 + ... + 37629.

It is an arithmetic number, because the mean of its divisors is an integer number (72186135).

Almost surely, 2^697503725 is an apocalyptic number.

It is an amenable number.

697503725 is a deficient number, since it is larger than the sum of its proper divisors (168729895).

697503725 is a wasteful number, since it uses less digits than its factorization.

697503725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42880 (or 42875 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 44.

The square root of 697503725 is about 26410.2958143221. The cubic root of 697503725 is about 886.8472910299.

The spelling of 697503725 in words is "six hundred ninety-seven million, five hundred three thousand, seven hundred twenty-five".