91396515 has 24 divisors (see below), whose sum is σ = 170110800. Its totient is φ = 41780928.

The previous prime is 91396499. The next prime is 91396523. The reversal of 91396515 is 51569319.

It is not a de Polignac number, because 91396515 - 2⁴ = 91396499 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61440 + ... + 62909.

It is an arithmetic number, because the mean of its divisors is an integer number (7087950).

Almost surely, 2^91396515 is an apocalyptic number.

91396515 is a deficient number, since it is larger than the sum of its proper divisors (78714285).

91396515 is a wasteful number, since it uses less digits than its factorization.

91396515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124371 (or 124364 counting only the distinct ones).

The product of its digits is 36450, while the sum is 39.

The square root of 91396515 is about 9560.1524569434. The cubic root of 91396515 is about 450.4464951076.

The spelling of 91396515 in words is "ninety-one million, three hundred ninety-six thousand, five hundred fifteen".