91648284 has 192 divisors, whose sum is σ = 284497920. Its totient is φ = 22302720.

The previous prime is 91648237. The next prime is 91648301. The reversal of 91648284 is 48284619.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1029712 + ... + 1029800.

It is an arithmetic number, because the mean of its divisors is an integer number (1481760).

Almost surely, 2^91648284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91648284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142248960).

91648284 is an abundant number, since it is smaller than the sum of its proper divisors (192849636).

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

91648284 is a wasteful number, since it uses less digits than its factorization.

91648284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 178 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 91648284 is about 9573.3110259722. The cubic root of 91648284 is about 450.8597292726.

The spelling of 91648284 in words is "ninety-one million, six hundred forty-eight thousand, two hundred eighty-four".