91344856 has 32 divisors (see below), whose sum is σ = 182592000. Its totient is φ = 42715296.

The previous prime is 91344853. The next prime is 91344863. The reversal of 91344856 is 65844319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91344853) 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, 8205 + ... + 15811.

It is an arithmetic number, because the mean of its divisors is an integer number (5706000).

Almost surely, 2^91344856 is an apocalyptic number.

It is an amenable number.

91344856 is a deficient number, since it is larger than the sum of its proper divisors (91247144).

91344856 is a wasteful number, since it uses less digits than its factorization.

91344856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7711 (or 7707 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 91344856 is about 9557.4502876029. The cubic root of 91344856 is about 450.3616122175.

The spelling of 91344856 in words is "ninety-one million, three hundred forty-four thousand, eight hundred fifty-six".