90415883 has 4 divisors (see below), whose sum is σ = 90804168. Its totient is φ = 90027600.

The previous prime is 90415879. The next prime is 90415891. The reversal of 90415883 is 38851409.

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

It is a cyclic number.

It is not a de Polignac number, because 90415883 - 2² = 90415879 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90415583) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 193793 + ... + 194258.

It is an arithmetic number, because the mean of its divisors is an integer number (22701042).

Almost surely, 2^90415883 is an apocalyptic number.

90415883 is a deficient number, since it is larger than the sum of its proper divisors (388285).

90415883 is a wasteful number, since it uses less digits than its factorization.

90415883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388284.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 90415883 is about 9508.7266760592. The cubic root of 90415883 is about 448.8296882352.

The spelling of 90415883 in words is "ninety million, four hundred fifteen thousand, eight hundred eighty-three".