91595616 has 48 divisors (see below), whose sum is σ = 274788864. Its totient is φ = 26169984.

The previous prime is 91595573. The next prime is 91595617. The reversal of 91595616 is 61659519.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91595617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67480 + ... + 68823.

It is an arithmetic number, because the mean of its divisors is an integer number (5724768).

Almost surely, 2^91595616 is an apocalyptic number.

91595616 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

91595616 is an abundant number, since it is smaller than the sum of its proper divisors (183193248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91595616 is a wasteful number, since it uses less digits than its factorization.

91595616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136323 (or 136315 counting only the distinct ones).

The product of its digits is 72900, while the sum is 42.

The square root of 91595616 is about 9570.5598582319. The cubic root of 91595616 is about 450.7733467481.

The spelling of 91595616 in words is "ninety-one million, five hundred ninety-five thousand, six hundred sixteen".