91930248 has 32 divisors (see below), whose sum is σ = 255362400. Its totient is φ = 30643344.

The previous prime is 91930243. The next prime is 91930253. The reversal of 91930248 is 84203919.

It is an interprime number because it is at equal distance from previous prime (91930243) and next prime (91930253).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (91930243) 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, 212586 + ... + 213017.

It is an arithmetic number, because the mean of its divisors is an integer number (7980075).

Almost surely, 2^91930248 is an apocalyptic number.

It is an amenable number.

91930248 is an abundant number, since it is smaller than the sum of its proper divisors (163432152).

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

91930248 is a wasteful number, since it uses less digits than its factorization.

91930248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425618 (or 425608 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 91930248 is about 9588.0262828175. The cubic root of 91930248 is about 451.3216257674.

The spelling of 91930248 in words is "ninety-one million, nine hundred thirty thousand, two hundred forty-eight".