91277942 has 16 divisors (see below), whose sum is σ = 158028192. Its totient is φ = 38731200.

The previous prime is 91277939. The next prime is 91277951. The reversal of 91277942 is 24977219.

It is a self number, because there is not a number n which added to its sum of digits gives 91277942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30863 + ... + 33690.

It is an arithmetic number, because the mean of its divisors is an integer number (9876762).

Almost surely, 2^91277942 is an apocalyptic number.

91277942 is a deficient number, since it is larger than the sum of its proper divisors (66750250).

91277942 is a wasteful number, since it uses less digits than its factorization.

91277942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64663.

The product of its digits is 63504, while the sum is 41.

The square root of 91277942 is about 9553.9490264497. The cubic root of 91277942 is about 450.2516156625.

The spelling of 91277942 in words is "ninety-one million, two hundred seventy-seven thousand, nine hundred forty-two".