91414556 has 6 divisors (see below), whose sum is σ = 159975480. Its totient is φ = 45707276.

The previous prime is 91414553. The next prime is 91414579. The reversal of 91414556 is 65541419.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91414553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11426816 + ... + 11426823.

It is an arithmetic number, because the mean of its divisors is an integer number (26662580).

Almost surely, 2^91414556 is an apocalyptic number.

It is an amenable number.

91414556 is a deficient number, since it is larger than the sum of its proper divisors (68560924).

91414556 is a wasteful number, since it uses less digits than its factorization.

91414556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22853643 (or 22853641 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 91414556 is about 9561.0959622838. The cubic root of 91414556 is about 450.4761314330.

The spelling of 91414556 in words is "ninety-one million, four hundred fourteen thousand, five hundred fifty-six".