690234925 has 12 divisors (see below), whose sum is σ = 875797120. Its totient is φ = 539345520.

The previous prime is 690234893. The next prime is 690234931. The reversal of 690234925 is 529432096.

It is not a de Polignac number, because 690234925 - 2⁵ = 690234893 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319965 + ... + 322114.

Almost surely, 2^690234925 is an apocalyptic number.

It is an amenable number.

690234925 is a deficient number, since it is larger than the sum of its proper divisors (185562195).

690234925 is a wasteful number, since it uses less digits than its factorization.

690234925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642132 (or 642127 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 690234925 is about 26272.3224135210. The cubic root of 690234925 is about 883.7558672330.

The spelling of 690234925 in words is "six hundred ninety million, two hundred thirty-four thousand, nine hundred twenty-five".