90311656 has 16 divisors (see below), whose sum is σ = 171081540. Its totient is φ = 44689920.

The previous prime is 90311651. The next prime is 90311677. The reversal of 90311656 is 65611309.

It can be written as a sum of positive squares in 2 ways, for example, as 80389156 + 9922500 = 8966^2 + 3150^2 .

It is not an unprimeable number, because it can be changed into a prime (90311651) 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, 57415 + ... + 58966.

Almost surely, 2^90311656 is an apocalyptic number.

It is an amenable number.

90311656 is a deficient number, since it is larger than the sum of its proper divisors (80769884).

90311656 is a wasteful number, since it uses less digits than its factorization.

90311656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116484 (or 116480 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 90311656 is about 9503.2444985910. The cubic root of 90311656 is about 448.6571589657.

The spelling of 90311656 in words is "ninety million, three hundred eleven thousand, six hundred fifty-six".