91648272 has 40 divisors (see below), whose sum is σ = 237906400. Its totient is φ = 30401280.

The previous prime is 91648237. The next prime is 91648301. The reversal of 91648272 is 27284619.

It is a self number, because there is not a number n which added to its sum of digits gives 91648272.

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, 5604 + ... + 14652.

It is an arithmetic number, because the mean of its divisors is an integer number (5947660).

Almost surely, 2^91648272 is an apocalyptic number.

It is an amenable number.

91648272 is an abundant number, since it is smaller than the sum of its proper divisors (146258128).

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

91648272 is a wasteful number, since it uses less digits than its factorization.

91648272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9271 (or 9265 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 91648272 is about 9573.3103992297. The cubic root of 91648272 is about 450.8597095947.

The spelling of 91648272 in words is "ninety-one million, six hundred forty-eight thousand, two hundred seventy-two".