91336536 has 24 divisors (see below), whose sum is σ = 247369980. Its totient is φ = 30445488.

The previous prime is 91336523. The next prime is 91336537. The reversal of 91336536 is 63563319.

91336536 is a `hidden beast` number, since 91 + 3 + 36 + 536 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 91336536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91336537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 634210 + ... + 634353.

Almost surely, 2^91336536 is an apocalyptic number.

It is an amenable number.

91336536 is an abundant number, since it is smaller than the sum of its proper divisors (156033444).

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

91336536 is a wasteful number, since it uses less digits than its factorization.

91336536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268575 (or 1268568 counting only the distinct ones).

The product of its digits is 43740, while the sum is 36.

The square root of 91336536 is about 9557.0150151603. The cubic root of 91336536 is about 450.3479383135.

The spelling of 91336536 in words is "ninety-one million, three hundred thirty-six thousand, five hundred thirty-six".