91678802 has 32 divisors (see below), whose sum is σ = 147052800. Its totient is φ = 42795648.

The previous prime is 91678801. The next prime is 91678823. The reversal of 91678802 is 20887619.

It is a self number, because there is not a number n which added to its sum of digits gives 91678802.

It is not an unprimeable number, because it can be changed into a prime (91678801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249623 + ... + 249989.

It is an arithmetic number, because the mean of its divisors is an integer number (4595400).

Almost surely, 2^91678802 is an apocalyptic number.

91678802 is a deficient number, since it is larger than the sum of its proper divisors (55373998).

91678802 is a wasteful number, since it uses less digits than its factorization.

91678802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 91678802 is about 9574.9048037043. The cubic root of 91678802 is about 450.9097677081.

The spelling of 91678802 in words is "ninety-one million, six hundred seventy-eight thousand, eight hundred two".