90196977 has 16 divisors (see below), whose sum is σ = 130032000. Its totient is φ = 55283712.

The previous prime is 90196973. The next prime is 90196991. The reversal of 90196977 is 77969109.

It is not a de Polignac number, because 90196977 - 2² = 90196973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90196973) 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 15 ways as a sum of consecutive naturals, for example, 5524 + ... + 14522.

It is an arithmetic number, because the mean of its divisors is an integer number (8127000).

Almost surely, 2^90196977 is an apocalyptic number.

It is an amenable number.

90196977 is a deficient number, since it is larger than the sum of its proper divisors (39835023).

90196977 is a wasteful number, since it uses less digits than its factorization.

90196977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9272.

The product of its (nonzero) digits is 214326, while the sum is 48.

The square root of 90196977 is about 9497.2089057786. The cubic root of 90196977 is about 448.4671748228.

The spelling of 90196977 in words is "ninety million, one hundred ninety-six thousand, nine hundred seventy-seven".