90831952 has 20 divisors (see below), whose sum is σ = 186339636. Its totient is φ = 42744320.

The previous prime is 90831943. The next prime is 90831971. The reversal of 90831952 is 25913809.

It can be written as a sum of positive squares in 2 ways, for example, as 53816896 + 37015056 = 7336^2 + 6084^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166699 + ... + 167242.

Almost surely, 2^90831952 is an apocalyptic number.

It is an amenable number.

90831952 is an abundant number, since it is smaller than the sum of its proper divisors (95507684).

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

90831952 is a wasteful number, since it uses less digits than its factorization.

90831952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333966 (or 333960 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 90831952 is about 9530.5798354560. The cubic root of 90831952 is about 449.5170984376.

The spelling of 90831952 in words is "ninety million, eight hundred thirty-one thousand, nine hundred fifty-two".