91634812 has 6 divisors (see below), whose sum is σ = 160360928. Its totient is φ = 45817404.

The previous prime is 91634759. The next prime is 91634821. The reversal of 91634812 is 21843619.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11454348 + ... + 11454355.

Almost surely, 2^91634812 is an apocalyptic number.

It is an amenable number.

91634812 is a deficient number, since it is larger than the sum of its proper divisors (68726116).

91634812 is a wasteful number, since it uses less digits than its factorization.

91634812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22908707 (or 22908705 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 91634812 is about 9572.6073773032. The cubic root of 91634812 is about 450.8376365515.

The spelling of 91634812 in words is "ninety-one million, six hundred thirty-four thousand, eight hundred twelve".