90938315 has 16 divisors (see below), whose sum is σ = 118214208. Its totient is φ = 66758016.

The previous prime is 90938311. The next prime is 90938333. The reversal of 90938315 is 51383909.

It is not a de Polignac number, because 90938315 - 2² = 90938311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90938311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7202 + ... + 15288.

It is an arithmetic number, because the mean of its divisors is an integer number (7388388).

Almost surely, 2^90938315 is an apocalyptic number.

90938315 is a deficient number, since it is larger than the sum of its proper divisors (27275893).

90938315 is a wasteful number, since it uses less digits than its factorization.

90938315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8278.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 90938315 is about 9536.1582935687. The cubic root of 90938315 is about 449.6924894970.

The spelling of 90938315 in words is "ninety million, nine hundred thirty-eight thousand, three hundred fifteen".