690625475 has 12 divisors (see below), whose sum is σ = 856832064. Its totient is φ = 552205920.

The previous prime is 690625447. The next prime is 690625499. The reversal of 690625475 is 574526096.

It is not a de Polignac number, because 690625475 - 2²⁶ = 623516611 is a prime.

It is a Duffinian 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, 48917 + ... + 61433.

It is an arithmetic number, because the mean of its divisors is an integer number (71402672).

Almost surely, 2^690625475 is an apocalyptic number.

690625475 is a deficient number, since it is larger than the sum of its proper divisors (166206589).

690625475 is a wasteful number, since it uses less digits than its factorization.

690625475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14734 (or 14729 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 690625475 is about 26279.7540894126. The cubic root of 690625475 is about 883.9225185976.

The spelling of 690625475 in words is "six hundred ninety million, six hundred twenty-five thousand, four hundred seventy-five".