90977272 has 16 divisors (see below), whose sum is σ = 172920240. Its totient is φ = 44865216.

The previous prime is 90977221. The next prime is 90977303. The reversal of 90977272 is 27277909.

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, 77308 + ... + 78475.

It is an arithmetic number, because the mean of its divisors is an integer number (10807515).

Almost surely, 2^90977272 is an apocalyptic number.

It is an amenable number.

90977272 is a deficient number, since it is larger than the sum of its proper divisors (81942968).

90977272 is a wasteful number, since it uses less digits than its factorization.

90977272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155862 (or 155858 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 90977272 is about 9538.2006688893. The cubic root of 90977272 is about 449.7566948113.

The spelling of 90977272 in words is "ninety million, nine hundred seventy-seven thousand, two hundred seventy-two".