91636848 has 60 divisors (see below), whose sum is σ = 269961640. Its totient is φ = 28937088.

The previous prime is 91636843. The next prime is 91636849. The reversal of 91636848 is 84863619.

91636848 is a `hidden beast` number, since 9 + 1 + 636 + 8 + 4 + 8 = 666.

It is a super-2 number, since 2×91636848² = 16794623822750208, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91636843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14011 + ... + 19482.

Almost surely, 2^91636848 is an apocalyptic number.

It is an amenable number.

91636848 is an abundant number, since it is smaller than the sum of its proper divisors (178324792).

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

91636848 is a wasteful number, since it uses less digits than its factorization.

91636848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33526 (or 33517 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 91636848 is about 9572.7137218241. The cubic root of 91636848 is about 450.8409755250.

The spelling of 91636848 in words is "ninety-one million, six hundred thirty-six thousand, eight hundred forty-eight".