91843136 has 56 divisors (see below), whose sum is σ = 227234496. Its totient is φ = 35781120.

The previous prime is 91843133. The next prime is 91843181. The reversal of 91843136 is 63134819.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 91843096 and 91843105.

It is not an unprimeable number, because it can be changed into a prime (91843133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4391 + ... + 14246.

Almost surely, 2^91843136 is an apocalyptic number.

It is an amenable number.

91843136 is an abundant number, since it is smaller than the sum of its proper divisors (135391360).

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

91843136 is a wasteful number, since it uses less digits than its factorization.

91843136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18667 (or 18657 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 91843136 is about 9583.4824568108. The cubic root of 91843136 is about 451.1790250632.

The spelling of 91843136 in words is "ninety-one million, eight hundred forty-three thousand, one hundred thirty-six".