91560415 has 8 divisors (see below), whose sum is σ = 111945888. Its totient is φ = 71866080.

The previous prime is 91560409. The next prime is 91560431. The reversal of 91560415 is 51406519.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91560415 - 2¹¹ = 91558367 is a prime.

It is a Duffinian number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 172491 + ... + 173020.

It is an arithmetic number, because the mean of its divisors is an integer number (13993236).

Almost surely, 2^91560415 is an apocalyptic number.

91560415 is a deficient number, since it is larger than the sum of its proper divisors (20385473).

91560415 is a wasteful number, since it uses less digits than its factorization.

91560415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345569.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 91560415 is about 9568.7206563887. The cubic root of 91560415 is about 450.7155939633.

The spelling of 91560415 in words is "ninety-one million, five hundred sixty thousand, four hundred fifteen".