90836392 has 8 divisors (see below), whose sum is σ = 170318250. Its totient is φ = 45418192.

The previous prime is 90836387. The next prime is 90836399. The reversal of 90836392 is 29363809.

It can be written as a sum of positive squares in only one way, i.e., 58277956 + 32558436 = 7634^2 + 5706^2 .

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

It is a super-2 number, since 2×90836392² = 16502500223155328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90836399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5677267 + ... + 5677282.

Almost surely, 2^90836392 is an apocalyptic number.

It is an amenable number.

90836392 is a deficient number, since it is larger than the sum of its proper divisors (79481858).

90836392 is a wasteful number, since it uses less digits than its factorization.

90836392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11354555 (or 11354551 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 90836392 is about 9530.8127670204. The cubic root of 90836392 is about 449.5244226715.

The spelling of 90836392 in words is "ninety million, eight hundred thirty-six thousand, three hundred ninety-two".