91427814 has 24 divisors (see below), whose sum is σ = 203448960. Its totient is φ = 29652048.

The previous prime is 91427813. The next prime is 91427839. The reversal of 91427814 is 41872419.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91427813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67974 + ... + 69305.

It is an arithmetic number, because the mean of its divisors is an integer number (8477040).

Almost surely, 2^91427814 is an apocalyptic number.

91427814 is an abundant number, since it is smaller than the sum of its proper divisors (112021146).

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

91427814 is a wasteful number, since it uses less digits than its factorization.

91427814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137324 (or 137321 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 91427814 is about 9561.7892677051. The cubic root of 91427814 is about 450.4979081394.

The spelling of 91427814 in words is "ninety-one million, four hundred twenty-seven thousand, eight hundred fourteen".