91902160 has 80 divisors (see below), whose sum is σ = 252662400. Its totient is φ = 30417408.

The previous prime is 91902149. The next prime is 91902169. The reversal of 91902160 is 6120919.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91902169) 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, 13411 + ... + 19069.

It is an arithmetic number, because the mean of its divisors is an integer number (3158280).

Almost surely, 2^91902160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91902160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126331200).

91902160 is an abundant number, since it is smaller than the sum of its proper divisors (160760240).

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

91902160 is a wasteful number, since it uses less digits than its factorization.

91902160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5708 (or 5702 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 91902160 is about 9586.5614273315. The cubic root of 91902160 is about 451.2756560843.

The spelling of 91902160 in words is "ninety-one million, nine hundred two thousand, one hundred sixty".