91712852 has 48 divisors (see below), whose sum is σ = 201277440. Its totient is φ = 35522400.

The previous prime is 91712837. The next prime is 91712857. The reversal of 91712852 is 25821719.

It is a super-2 number, since 2×91712852² = 16822494443947808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91712857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58049 + ... + 59607.

It is an arithmetic number, because the mean of its divisors is an integer number (4193280).

Almost surely, 2^91712852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91712852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100638720).

91712852 is an abundant number, since it is smaller than the sum of its proper divisors (109564588).

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

91712852 is a wasteful number, since it uses less digits than its factorization.

91712852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 1770 counting only the distinct ones).

The product of its digits is 10080, while the sum is 35.

The square root of 91712852 is about 9576.6827242005. The cubic root of 91712852 is about 450.9655842359.

The spelling of 91712852 in words is "ninety-one million, seven hundred twelve thousand, eight hundred fifty-two".