90431596 has 6 divisors (see below), whose sum is σ = 158255300. Its totient is φ = 45215796.

The previous prime is 90431587. The next prime is 90431611. The reversal of 90431596 is 69513409.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 11303946 + ... + 11303953.

Almost surely, 2^90431596 is an apocalyptic number.

It is an amenable number.

90431596 is a deficient number, since it is larger than the sum of its proper divisors (67823704).

90431596 is a wasteful number, since it uses less digits than its factorization.

90431596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22607903 (or 22607901 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 90431596 is about 9509.5528811822. The cubic root of 90431596 is about 448.8556868104.

The spelling of 90431596 in words is "ninety million, four hundred thirty-one thousand, five hundred ninety-six".