90955972 has 12 divisors (see below), whose sum is σ = 159452860. Its totient is φ = 45398016.

The previous prime is 90955957. The next prime is 90955973. The reversal of 90955972 is 27955909.

It can be written as a sum of positive squares in 2 ways, for example, as 76317696 + 14638276 = 8736^2 + 3826^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (90955973) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17397 + ... + 22012.

Almost surely, 2^90955972 is an apocalyptic number.

It is an amenable number.

90955972 is a deficient number, since it is larger than the sum of its proper divisors (68496888).

90955972 is a wasteful number, since it uses less digits than its factorization.

90955972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39990 (or 39988 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 46.

The square root of 90955972 is about 9537.0840407328. The cubic root of 90955972 is about 449.7215923984.

The spelling of 90955972 in words is "ninety million, nine hundred fifty-five thousand, nine hundred seventy-two".