90767915 has 16 divisors (see below), whose sum is σ = 126342912. Its totient is φ = 61310304.

The previous prime is 90767903. The next prime is 90767923. The reversal of 90767915 is 51976709.

It is a cyclic number.

It is not a de Polignac number, because 90767915 - 2⁴ = 90767899 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17009 + ... + 21698.

It is an arithmetic number, because the mean of its divisors is an integer number (7896432).

Almost surely, 2^90767915 is an apocalyptic number.

90767915 is a deficient number, since it is larger than the sum of its proper divisors (35574997).

90767915 is a wasteful number, since it uses less digits than its factorization.

90767915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38786.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 90767915 is about 9527.2196888704. The cubic root of 90767915 is about 449.4114363031.

The spelling of 90767915 in words is "ninety million, seven hundred sixty-seven thousand, nine hundred fifteen".