91077112 has 16 divisors (see below), whose sum is σ = 195165360. Its totient is φ = 39033024.

The previous prime is 91077097. The next prime is 91077121. The reversal of 91077112 is 21177019.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 3 ways as a sum of consecutive naturals, for example, 813133 + ... + 813244.

It is an arithmetic number, because the mean of its divisors is an integer number (12197835).

Almost surely, 2^91077112 is an apocalyptic number.

It is an amenable number.

91077112 is an abundant number, since it is smaller than the sum of its proper divisors (104088248).

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

91077112 is a wasteful number, since it uses less digits than its factorization.

91077112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626390 (or 1626386 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 91077112 is about 9543.4329253157. The cubic root of 91077112 is about 449.9211582039.

The spelling of 91077112 in words is "ninety-one million, seventy-seven thousand, one hundred twelve".