91226472 has 32 divisors (see below), whose sum is σ = 228516000. Its totient is φ = 30348864.

The previous prime is 91226419. The next prime is 91226491. The reversal of 91226472 is 27462219.

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, 9654 + ... + 16602.

It is an arithmetic number, because the mean of its divisors is an integer number (7141125).

Almost surely, 2^91226472 is an apocalyptic number.

It is an amenable number.

91226472 is an abundant number, since it is smaller than the sum of its proper divisors (137289528).

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

91226472 is a wasteful number, since it uses less digits than its factorization.

91226472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505 (or 7501 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 91226472 is about 9551.2549960725. The cubic root of 91226472 is about 450.1669701377.

The spelling of 91226472 in words is "ninety-one million, two hundred twenty-six thousand, four hundred seventy-two".