91718460 has 96 divisors (see below), whose sum is σ = 294604800. Its totient is φ = 23664960.

The previous prime is 91718443. The next prime is 91718467. The reversal of 91718460 is 6481719.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91718467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14001 + ... + 19479.

It is an arithmetic number, because the mean of its divisors is an integer number (3068800).

Almost surely, 2^91718460 is an apocalyptic number.

91718460 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91718460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147302400).

91718460 is an abundant number, since it is smaller than the sum of its proper divisors (202886340).

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

91718460 is a wasteful number, since it uses less digits than its factorization.

91718460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5528 (or 5520 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 91718460 is about 9576.9755142216. The cubic root of 91718460 is about 450.9747758355.

The spelling of 91718460 in words is "ninety-one million, seven hundred eighteen thousand, four hundred sixty".