90931366 has 4 divisors (see below), whose sum is σ = 136397052. Its totient is φ = 45465682.

The previous prime is 90931363. The next prime is 90931367. The reversal of 90931366 is 66313909.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90931363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22732840 + ... + 22732843.

It is an arithmetic number, because the mean of its divisors is an integer number (34099263).

Almost surely, 2^90931366 is an apocalyptic number.

90931366 is a deficient number, since it is larger than the sum of its proper divisors (45465686).

90931366 is a wasteful number, since it uses less digits than its factorization.

90931366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45465685.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 90931366 is about 9535.7939365320. The cubic root of 90931366 is about 449.6810348727.

The spelling of 90931366 in words is "ninety million, nine hundred thirty-one thousand, three hundred sixty-six".