91648632 has 32 divisors (see below), whose sum is σ = 242600400. Its totient is φ = 28752384.

The previous prime is 91648631. The next prime is 91648633. The reversal of 91648632 is 23684619.

It is an interprime number because it is at equal distance from previous prime (91648631) and next prime (91648633).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91648631) 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, 111907 + ... + 112722.

Almost surely, 2^91648632 is an apocalyptic number.

It is an amenable number.

91648632 is an abundant number, since it is smaller than the sum of its proper divisors (150951768).

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

91648632 is a wasteful number, since it uses less digits than its factorization.

91648632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224655 (or 224651 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 91648632 is about 9573.3292014847. The cubic root of 91648632 is about 450.8602999288.

The spelling of 91648632 in words is "ninety-one million, six hundred forty-eight thousand, six hundred thirty-two".