91083964 has 24 divisors (see below), whose sum is σ = 163658880. Its totient is φ = 44339376.

The previous prime is 91083959. The next prime is 91084003. The reversal of 91083964 is 46938019.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23449 + ... + 27055.

It is an arithmetic number, because the mean of its divisors is an integer number (6819120).

Almost surely, 2^91083964 is an apocalyptic number.

It is an amenable number.

91083964 is a deficient number, since it is larger than the sum of its proper divisors (72574916).

91083964 is a wasteful number, since it uses less digits than its factorization.

91083964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777 (or 3775 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 91083964 is about 9543.7919088798. The cubic root of 91083964 is about 449.9324408866.

The spelling of 91083964 in words is "ninety-one million, eighty-three thousand, nine hundred sixty-four".