91600015 has 8 divisors (see below), whose sum is σ = 118375488. Its totient is φ = 67643040.

The previous prime is 91600013. The next prime is 91600021. The reversal of 91600015 is 51000619.

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

It is not a de Polignac number, because 91600015 - 2¹ = 91600013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91600013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704551 + ... + 704680.

It is an arithmetic number, because the mean of its divisors is an integer number (14796936).

Almost surely, 2^91600015 is an apocalyptic number.

91600015 is a deficient number, since it is larger than the sum of its proper divisors (26775473).

91600015 is a wasteful number, since it uses less digits than its factorization.

91600015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409249.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 91600015 is about 9570.7896748387. The cubic root of 91600015 is about 450.7805629603.

The spelling of 91600015 in words is "ninety-one million, six hundred thousand, fifteen".