91288848 has 40 divisors (see below), whose sum is σ = 269520448. Its totient is φ = 26082432.

The previous prime is 91288819. The next prime is 91288859. The reversal of 91288848 is 84888219.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 91288797 and 91288806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135511 + ... + 136182.

Almost surely, 2^91288848 is an apocalyptic number.

It is an amenable number.

91288848 is an abundant number, since it is smaller than the sum of its proper divisors (178231600).

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

91288848 is a wasteful number, since it uses less digits than its factorization.

91288848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271711 (or 271705 counting only the distinct ones).

The product of its digits is 294912, while the sum is 48.

The square root of 91288848 is about 9554.5197681516. The cubic root of 91288848 is about 450.2695471527.

The spelling of 91288848 in words is "ninety-one million, two hundred eighty-eight thousand, eight hundred forty-eight".