91634136 has 32 divisors (see below), whose sum is σ = 249912000. Its totient is φ = 27767840.

The previous prime is 91634117. The next prime is 91634143. The reversal of 91634136 is 63143619.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 91634097 and 91634106.

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, 173286 + ... + 173813.

It is an arithmetic number, because the mean of its divisors is an integer number (7809750).

Almost surely, 2^91634136 is an apocalyptic number.

It is an amenable number.

91634136 is an abundant number, since it is smaller than the sum of its proper divisors (158277864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91634136 is a wasteful number, since it uses less digits than its factorization.

91634136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347119 (or 347115 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 91634136 is about 9572.5720681539. The cubic root of 91634136 is about 450.8365279227.

The spelling of 91634136 in words is "ninety-one million, six hundred thirty-four thousand, one hundred thirty-six".