939100091 has 16 divisors (see below), whose sum is σ = 984614400. Its totient is φ = 894794208.

The previous prime is 939100087. The next prime is 939100117. The reversal of 939100091 is 190001939.

It is a cyclic number.

It is not a de Polignac number, because 939100091 - 2² = 939100087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (939100991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 846245 + ... + 847353.

It is an arithmetic number, because the mean of its divisors is an integer number (61538400).

Almost surely, 2^939100091 is an apocalyptic number.

939100091 is a deficient number, since it is larger than the sum of its proper divisors (45514309).

939100091 is a wasteful number, since it uses less digits than its factorization.

939100091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618.

The product of its (nonzero) digits is 2187, while the sum is 32.

The square root of 939100091 is about 30644.7400217395. The cubic root of 939100091 is about 979.2734066522.

The spelling of 939100091 in words is "nine hundred thirty-nine million, one hundred thousand, ninety-one".