91056670 has 16 divisors (see below), whose sum is σ = 164112480. Its totient is φ = 36375904.

The previous prime is 91056653. The next prime is 91056673. The reversal of 91056670 is 7665019.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91056673) 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, 2964 + ... + 13816.

It is an arithmetic number, because the mean of its divisors is an integer number (10257030).

Almost surely, 2^91056670 is an apocalyptic number.

91056670 is a deficient number, since it is larger than the sum of its proper divisors (73055810).

91056670 is a wasteful number, since it uses less digits than its factorization.

91056670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11699.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 91056670 is about 9542.3618669594. The cubic root of 91056670 is about 449.8874945083.

The spelling of 91056670 in words is "ninety-one million, fifty-six thousand, six hundred seventy".