91782882 has 40 divisors (see below), whose sum is σ = 216493200. Its totient is φ = 28983096.

The previous prime is 91782877. The next prime is 91782893. The reversal of 91782882 is 28828719.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11832 + ... + 17987.

It is an arithmetic number, because the mean of its divisors is an integer number (5412330).

Almost surely, 2^91782882 is an apocalyptic number.

91782882 is an abundant number, since it is smaller than the sum of its proper divisors (124710318).

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

91782882 is a wasteful number, since it uses less digits than its factorization.

91782882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29852 (or 29843 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 91782882 is about 9580.3383030037. The cubic root of 91782882 is about 451.0803376369.

The spelling of 91782882 in words is "ninety-one million, seven hundred eighty-two thousand, eight hundred eighty-two".