690395125 has 32 divisors (see below), whose sum is σ = 998659584. Its totient is φ = 466704000.

The previous prime is 690395107. The next prime is 690395129. The reversal of 690395125 is 521593096.

It is a happy number.

It is not a de Polignac number, because 690395125 - 2²⁷ = 556177397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690395129) 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 31 ways as a sum of consecutive naturals, for example, 56569 + ... + 67681.

It is an arithmetic number, because the mean of its divisors is an integer number (31208112).

Almost surely, 2^690395125 is an apocalyptic number.

It is an amenable number.

690395125 is a deficient number, since it is larger than the sum of its proper divisors (308264459).

690395125 is a wasteful number, since it uses less digits than its factorization.

690395125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11206 (or 11196 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 690395125 is about 26275.3710725462. The cubic root of 690395125 is about 883.8242336848.

The spelling of 690395125 in words is "six hundred ninety million, three hundred ninety-five thousand, one hundred twenty-five".