91951260 has 96 divisors (see below), whose sum is σ = 274713600. Its totient is φ = 22913280.

The previous prime is 91951219. The next prime is 91951261. The reversal of 91951260 is 6215919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91951261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89550 + ... + 90570.

It is an arithmetic number, because the mean of its divisors is an integer number (2861600).

Almost surely, 2^91951260 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 91951260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137356800).

91951260 is an abundant number, since it is smaller than the sum of its proper divisors (182762340).

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

91951260 is a wasteful number, since it uses less digits than its factorization.

91951260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 91951260 is about 9589.1219618899. The cubic root of 91951260 is about 451.3560085297.

The spelling of 91951260 in words is "ninety-one million, nine hundred fifty-one thousand, two hundred sixty".