91064937 has 8 divisors (see below), whose sum is σ = 128562336. Its totient is φ = 57138752.

The previous prime is 91064923. The next prime is 91064957. The reversal of 91064937 is 73946019.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91064937 - 2⁶ = 91064873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91064895 and 91064904.

It is not an unprimeable number, because it can be changed into a prime (91064917) 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, 892743 + ... + 892844.

It is an arithmetic number, because the mean of its divisors is an integer number (16070292).

Almost surely, 2^91064937 is an apocalyptic number.

It is an amenable number.

91064937 is a deficient number, since it is larger than the sum of its proper divisors (37497399).

91064937 is a wasteful number, since it uses less digits than its factorization.

91064937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785607.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 91064937 is about 9542.7950308073. The cubic root of 91064937 is about 449.9011091338.

The spelling of 91064937 in words is "ninety-one million, sixty-four thousand, nine hundred thirty-seven".