91788852 has 12 divisors (see below), whose sum is σ = 214174016. Its totient is φ = 30596280.

The previous prime is 91788847. The next prime is 91788859. The reversal of 91788852 is 25888719.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91788859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3824524 + ... + 3824547.

Almost surely, 2^91788852 is an apocalyptic number.

It is an amenable number.

91788852 is an abundant number, since it is smaller than the sum of its proper divisors (122385164).

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

91788852 is a wasteful number, since it uses less digits than its factorization.

91788852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7649078 (or 7649076 counting only the distinct ones).

The product of its digits is 322560, while the sum is 48.

The square root of 91788852 is about 9580.6498735733. The cubic root of 91788852 is about 451.0901175696.

The spelling of 91788852 in words is "ninety-one million, seven hundred eighty-eight thousand, eight hundred fifty-two".