91065842 has 16 divisors (see below), whose sum is σ = 157660992. Its totient is φ = 38641200.

The previous prime is 91065833. The next prime is 91065847. The reversal of 91065842 is 24856019.

It is not an unprimeable number, because it can be changed into a prime (91065847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30788 + ... + 33615.

It is an arithmetic number, because the mean of its divisors is an integer number (9853812).

Almost surely, 2^91065842 is an apocalyptic number.

91065842 is a deficient number, since it is larger than the sum of its proper divisors (66595150).

91065842 is a wasteful number, since it uses less digits than its factorization.

91065842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64513.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 91065842 is about 9542.8424486628. The cubic root of 91065842 is about 449.9025994957.

The spelling of 91065842 in words is "ninety-one million, sixty-five thousand, eight hundred forty-two".