90929515 has 12 divisors (see below), whose sum is σ = 115913376. Its totient is φ = 68463488.

The previous prime is 90929483. The next prime is 90929521. The reversal of 90929515 is 51592909.

It is not a de Polignac number, because 90929515 - 2⁵ = 90929483 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 30019 + ... + 32908.

It is an arithmetic number, because the mean of its divisors is an integer number (9659448).

Almost surely, 2^90929515 is an apocalyptic number.

90929515 is a deficient number, since it is larger than the sum of its proper divisors (24983861).

90929515 is a wasteful number, since it uses less digits than its factorization.

90929515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62966 (or 62949 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 40.

The square root of 90929515 is about 9535.6968806690. The cubic root of 90929515 is about 449.6779836144.

The spelling of 90929515 in words is "ninety million, nine hundred twenty-nine thousand, five hundred fifteen".