91700168 has 48 divisors (see below), whose sum is σ = 200839500. Its totient is φ = 39137280.

The previous prime is 91700129. The next prime is 91700173. The reversal of 91700168 is 86100719.

It can be written as a sum of positive squares in 2 ways, for example, as 91431844 + 268324 = 9562^2 + 518^2 .

It is a super-2 number, since 2×91700168² = 16817841622456448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175748 + ... + 176268.

Almost surely, 2^91700168 is an apocalyptic number.

91700168 is a gapful number since it is divisible by the number (98) 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 91700168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100419750).

91700168 is an abundant number, since it is smaller than the sum of its proper divisors (109139332).

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

91700168 is a wasteful number, since it uses less digits than its factorization.

91700168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 979 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 91700168 is about 9576.0204678144. The cubic root of 91700168 is about 450.9447935795.

The spelling of 91700168 in words is "ninety-one million, seven hundred thousand, one hundred sixty-eight".