91271214 has 24 divisors (see below), whose sum is σ = 199606680. Its totient is φ = 30138768.

The previous prime is 91271203. The next prime is 91271221. The reversal of 91271214 is 41217219.

It is a congruent number.

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, 21769 + ... + 25620.

It is an arithmetic number, because the mean of its divisors is an integer number (8316945).

Almost surely, 2^91271214 is an apocalyptic number.

91271214 is an abundant number, since it is smaller than the sum of its proper divisors (108335466).

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

91271214 is a wasteful number, since it uses less digits than its factorization.

91271214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47504 (or 47501 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 91271214 is about 9553.5969142517. The cubic root of 91271214 is about 450.2405528682.

The spelling of 91271214 in words is "ninety-one million, two hundred seventy-one thousand, two hundred fourteen".