90672392 has 8 divisors (see below), whose sum is σ = 170010750. Its totient is φ = 45336192.

The previous prime is 90672383. The next prime is 90672401. The reversal of 90672392 is 29327609.

It is an interprime number because it is at equal distance from previous prime (90672383) and next prime (90672401).

It can be written as a sum of positive squares in only one way, i.e., 85858756 + 4813636 = 9266^2 + 2194^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5667017 + ... + 5667032.

Almost surely, 2^90672392 is an apocalyptic number.

It is an amenable number.

90672392 is a deficient number, since it is larger than the sum of its proper divisors (79338358).

90672392 is a wasteful number, since it uses less digits than its factorization.

90672392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11334055 (or 11334051 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 90672392 is about 9522.2052067785. The cubic root of 90672392 is about 449.2537293395.

The spelling of 90672392 in words is "ninety million, six hundred seventy-two thousand, three hundred ninety-two".