91882768 has 10 divisors (see below), whose sum is σ = 178022894. Its totient is φ = 45941376.

The previous prime is 91882757. The next prime is 91882781. The reversal of 91882768 is 86728819.

It can be written as a sum of positive squares in only one way, i.e., 46076944 + 45805824 = 6788^2 + 6768^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2871321 + ... + 2871352.

Almost surely, 2^91882768 is an apocalyptic number.

It is an amenable number.

91882768 is a deficient number, since it is larger than the sum of its proper divisors (86140126).

91882768 is a wasteful number, since it uses less digits than its factorization.

91882768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742681 (or 5742675 counting only the distinct ones).

The product of its digits is 387072, while the sum is 49.

The square root of 91882768 is about 9585.5499581401. The cubic root of 91882768 is about 451.2439130759.

The spelling of 91882768 in words is "ninety-one million, eight hundred eighty-two thousand, seven hundred sixty-eight".