90399683 has 16 divisors (see below), whose sum is σ = 104461056. Its totient is φ = 77420640.

The previous prime is 90399677. The next prime is 90399691. The reversal of 90399683 is 38699309.

It is not a de Polignac number, because 90399683 - 2⁶ = 90399619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90399983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14285 + ... + 19617.

It is an arithmetic number, because the mean of its divisors is an integer number (6528816).

Almost surely, 2^90399683 is an apocalyptic number.

90399683 is a deficient number, since it is larger than the sum of its proper divisors (14061373).

90399683 is a wasteful number, since it uses less digits than its factorization.

90399683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5434.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 90399683 is about 9507.8747888264. The cubic root of 90399683 is about 448.8028807209.

The spelling of 90399683 in words is "ninety million, three hundred ninety-nine thousand, six hundred eighty-three".