91311714 has 48 divisors (see below), whose sum is σ = 214414200. Its totient is φ = 28083744.

The previous prime is 91311713. The next prime is 91311769. The reversal of 91311714 is 41711319.

It can be written as a sum of positive squares in 4 ways, for example, as 12723489 + 78588225 = 3567^2 + 8865^2 .

It is a super-2 number, since 2×91311714² = 16675658227235592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91311713) 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 23 ways as a sum of consecutive naturals, for example, 38392 + ... + 40700.

Almost surely, 2^91311714 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91311714, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107207100).

91311714 is an abundant number, since it is smaller than the sum of its proper divisors (123102486).

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

91311714 is a wasteful number, since it uses less digits than its factorization.

91311714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356 (or 2327 counting only the distinct ones).

The product of its digits is 756, while the sum is 27.

The square root of 91311714 is about 9555.7162996816. The cubic root of 91311714 is about 450.3071384693.

The spelling of 91311714 in words is "ninety-one million, three hundred eleven thousand, seven hundred fourteen".