91836252 has 36 divisors (see below), whose sum is σ = 234758160. Its totient is φ = 30267072.

The previous prime is 91836233. The next prime is 91836259. The reversal of 91836252 is 25263819.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91836259) 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, 11128 + ... + 17535.

It is an arithmetic number, because the mean of its divisors is an integer number (6521060).

Almost surely, 2^91836252 is an apocalyptic number.

It is an amenable number.

91836252 is an abundant number, since it is smaller than the sum of its proper divisors (142921908).

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

91836252 is a wasteful number, since it uses less digits than its factorization.

91836252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28762 (or 28757 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 91836252 is about 9583.1232904518. The cubic root of 91836252 is about 451.1677522411.

The spelling of 91836252 in words is "ninety-one million, eight hundred thirty-six thousand, two hundred fifty-two".