90104986 has 4 divisors (see below), whose sum is σ = 135157482. Its totient is φ = 45052492.

The previous prime is 90104983. The next prime is 90104999. The reversal of 90104986 is 68940109.

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

It can be written as a sum of positive squares in only one way, i.e., 48566961 + 41538025 = 6969^2 + 6445^2 .

It is not an unprimeable number, because it can be changed into a prime (90104983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22526245 + ... + 22526248.

Almost surely, 2^90104986 is an apocalyptic number.

90104986 is a deficient number, since it is larger than the sum of its proper divisors (45052496).

90104986 is a wasteful number, since it uses less digits than its factorization.

90104986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45052495.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 90104986 is about 9492.3646158373. The cubic root of 90104986 is about 448.3146605577.

The spelling of 90104986 in words is "ninety million, one hundred four thousand, nine hundred eighty-six".