90817677 has 24 divisors (see below), whose sum is σ = 137115264. Its totient is φ = 57867264.

The previous prime is 90817669. The next prime is 90817681. The reversal of 90817677 is 77671809.

It is a happy number.

It is not a de Polignac number, because 90817677 - 2³ = 90817669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90817627) 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 23 ways as a sum of consecutive naturals, for example, 15693 + ... + 20685.

It is an arithmetic number, because the mean of its divisors is an integer number (5713136).

Almost surely, 2^90817677 is an apocalyptic number.

It is an amenable number.

90817677 is a deficient number, since it is larger than the sum of its proper divisors (46297587).

90817677 is a wasteful number, since it uses less digits than its factorization.

90817677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5089 (or 5086 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 90817677 is about 9529.8309009132. The cubic root of 90817677 is about 449.4935487482.

The spelling of 90817677 in words is "ninety million, eight hundred seventeen thousand, six hundred seventy-seven".