91108472 has 32 divisors (see below), whose sum is σ = 210252000. Its totient is φ = 36042624.

The previous prime is 91108469. The next prime is 91108481. The reversal of 91108472 is 27480119.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61847 + ... + 63302.

It is an arithmetic number, because the mean of its divisors is an integer number (6570375).

Almost surely, 2^91108472 is an apocalyptic number.

It is an amenable number.

91108472 is an abundant number, since it is smaller than the sum of its proper divisors (119143528).

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

91108472 is a wasteful number, since it uses less digits than its factorization.

91108472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125175 (or 125171 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 91108472 is about 9545.0757985466. The cubic root of 91108472 is about 449.9727917706.

The spelling of 91108472 in words is "ninety-one million, one hundred eight thousand, four hundred seventy-two".