91923648 has 28 divisors (see below), whose sum is σ = 243215160. Its totient is φ = 30641152.

The previous prime is 91923583. The next prime is 91923659. The reversal of 91923648 is 84632919.

91923648 is nontrivially palindromic in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239193 + ... + 239576.

Almost surely, 2^91923648 is an apocalyptic number.

It is an amenable number.

91923648 is an abundant number, since it is smaller than the sum of its proper divisors (151291512).

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

91923648 is a wasteful number, since it uses less digits than its factorization.

91923648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478784 (or 478774 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 91923648 is about 9587.6820973580. The cubic root of 91923648 is about 451.3108248465.

The spelling of 91923648 in words is "ninety-one million, nine hundred twenty-three thousand, six hundred forty-eight".