690031896 has 16 divisors (see below), whose sum is σ = 1725079800. Its totient is φ = 230010624.

The previous prime is 690031877. The next prime is 690031897. The reversal of 690031896 is 698130096.

It is a super-2 number, since 2×690031896² = 952288034994709632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690031897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14375641 + ... + 14375688.

Almost surely, 2^690031896 is an apocalyptic number.

It is an amenable number.

690031896 is an abundant number, since it is smaller than the sum of its proper divisors (1035047904).

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

690031896 is a wasteful number, since it uses less digits than its factorization.

690031896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28751338 (or 28751334 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 690031896 is about 26268.4581960952. The cubic root of 690031896 is about 883.6692080106.

The spelling of 690031896 in words is "six hundred ninety million, thirty-one thousand, eight hundred ninety-six".