91077042 has 16 divisors (see below), whose sum is σ = 208176192. Its totient is φ = 26022000.

The previous prime is 91077037. The next prime is 91077043. The reversal of 91077042 is 24077019.

It is not an unprimeable number, because it can be changed into a prime (91077043) 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, 1084209 + ... + 1084292.

It is an arithmetic number, because the mean of its divisors is an integer number (13011012).

Almost surely, 2^91077042 is an apocalyptic number.

91077042 is an abundant number, since it is smaller than the sum of its proper divisors (117099150).

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

91077042 is a wasteful number, since it uses less digits than its factorization.

91077042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168513.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 91077042 is about 9543.4292578716. The cubic root of 91077042 is about 449.9210429371.

The spelling of 91077042 in words is "ninety-one million, seventy-seven thousand, forty-two".