91453648 has 40 divisors (see below), whose sum is σ = 208174176. Its totient is φ = 38371200.

The previous prime is 91453643. The next prime is 91453651. The reversal of 91453648 is 84635419.

It is a self number, because there is not a number n which added to its sum of digits gives 91453648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91453643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17698 + ... + 22273.

Almost surely, 2^91453648 is an apocalyptic number.

It is an amenable number.

91453648 is an abundant number, since it is smaller than the sum of its proper divisors (116720528).

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

91453648 is a wasteful number, since it uses less digits than its factorization.

91453648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40003 (or 39997 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 91453648 is about 9563.1400700816. The cubic root of 91453648 is about 450.5403352975.

The spelling of 91453648 in words is "ninety-one million, four hundred fifty-three thousand, six hundred forty-eight".