690625474 has 32 divisors (see below), whose sum is σ = 1294667136. Its totient is φ = 268427520.

The previous prime is 690625447. The next prime is 690625499. The reversal of 690625474 is 474526096.

It is a happy number.

It is a super-3 number, since 3×690625474³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 690625474.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 61504 + ... + 71860.

It is an arithmetic number, because the mean of its divisors is an integer number (40458348).

Almost surely, 2^690625474 is an apocalyptic number.

690625474 is a deficient number, since it is larger than the sum of its proper divisors (604041662).

690625474 is a wasteful number, since it uses less digits than its factorization.

690625474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10810.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 690625474 is about 26279.7540703866. The cubic root of 690625474 is about 883.9225181709.

The spelling of 690625474 in words is "six hundred ninety million, six hundred twenty-five thousand, four hundred seventy-four".