91027902 has 32 divisors (see below), whose sum is σ = 208415232. Its totient is φ = 25964064.

The previous prime is 91027901. The next prime is 91027907. The reversal of 91027902 is 20972019.

It is a self number, because there is not a number n which added to its sum of digits gives 91027902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91027901) 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, 29748 + ... + 32664.

It is an arithmetic number, because the mean of its divisors is an integer number (6512976).

Almost surely, 2^91027902 is an apocalyptic number.

91027902 is an abundant number, since it is smaller than the sum of its proper divisors (117387330).

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

91027902 is a wasteful number, since it uses less digits than its factorization.

91027902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 91027902 is about 9540.8543642590. The cubic root of 91027902 is about 449.8401110980.

The spelling of 91027902 in words is "ninety-one million, twenty-seven thousand, nine hundred two".