6942091 has 4 divisors (see below), whose sum is σ = 7476112. Its totient is φ = 6408072.

The previous prime is 6942073. The next prime is 6942119. The reversal of 6942091 is 1902496.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6942091 - 2¹⁵ = 6909323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6942031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266991 + ... + 267016.

It is an arithmetic number, because the mean of its divisors is an integer number (1869028).

Almost surely, 2^6942091 is an apocalyptic number.

6942091 is a deficient number, since it is larger than the sum of its proper divisors (534021).

6942091 is a wasteful number, since it uses less digits than its factorization.

6942091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534020.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 6942091 is about 2634.7848109476. The cubic root of 6942091 is about 190.7641524861.

The spelling of 6942091 in words is "six million, nine hundred forty-two thousand, ninety-one".