91364632 has 8 divisors (see below), whose sum is σ = 171308700. Its totient is φ = 45682312.

The previous prime is 91364629. The next prime is 91364639. The reversal of 91364632 is 23646319.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91364639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710282 + ... + 5710297.

Almost surely, 2^91364632 is an apocalyptic number.

It is an amenable number.

91364632 is a deficient number, since it is larger than the sum of its proper divisors (79944068).

91364632 is a wasteful number, since it uses less digits than its factorization.

91364632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11420585 (or 11420581 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

The square root of 91364632 is about 9558.4848171664. The cubic root of 91364632 is about 450.3941107035.

The spelling of 91364632 in words is "ninety-one million, three hundred sixty-four thousand, six hundred thirty-two".