90272272 has 10 divisors (see below), whose sum is σ = 174902558. Its totient is φ = 45136128.

The previous prime is 90272257. The next prime is 90272291. The reversal of 90272272 is 27227209.

It can be written as a sum of positive squares in only one way, i.e., 72999936 + 17272336 = 8544^2 + 4156^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2820993 + ... + 2821024.

Almost surely, 2^90272272 is an apocalyptic number.

It is an amenable number.

90272272 is a deficient number, since it is larger than the sum of its proper divisors (84630286).

90272272 is a wasteful number, since it uses less digits than its factorization.

90272272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5642025 (or 5642019 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 90272272 is about 9501.1721382154. The cubic root of 90272272 is about 448.5919311996.

The spelling of 90272272 in words is "ninety million, two hundred seventy-two thousand, two hundred seventy-two".