690325056 has 42 divisors (see below), whose sum is σ = 1978693782. Its totient is φ = 230108160.

The previous prime is 690325037. The next prime is 690325063. The reversal of 690325056 is 650523096.

It can be written as a sum of positive squares in only one way, i.e., 471758400 + 218566656 = 21720^2 + 14784^2 .

It is a super-3 number, since 3×690325056³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 690325056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 598665 + ... + 599816.

Almost surely, 2^690325056 is an apocalyptic number.

It is an amenable number.

690325056 is an abundant number, since it is smaller than the sum of its proper divisors (1288368726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690325056 is a wasteful number, since it uses less digits than its factorization.

690325056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198499 (or 1198486 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 690325056 is about 26274.0376798086. The cubic root of 690325056 is about 883.7943325585.

It can be divided in two parts, 69032 and 5056, that added together give a cube (74088 = 42³).

The spelling of 690325056 in words is "six hundred ninety million, three hundred twenty-five thousand, fifty-six".