6937889 has 4 divisors (see below), whose sum is σ = 7929024. Its totient is φ = 5946756.

The previous prime is 6937877. The next prime is 6937913. The reversal of 6937889 is 9887396.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6937889 - 2²⁰ = 5889313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6937829) 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, 495557 + ... + 495570.

It is an arithmetic number, because the mean of its divisors is an integer number (1982256).

Almost surely, 2^6937889 is an apocalyptic number.

It is an amenable number.

6937889 is a deficient number, since it is larger than the sum of its proper divisors (991135).

6937889 is an equidigital number, since it uses as much as digits as its factorization.

6937889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991134.

The product of its digits is 653184, while the sum is 50.

The square root of 6937889 is about 2633.9872816701. The cubic root of 6937889 is about 190.7256553073.

The spelling of 6937889 in words is "six million, nine hundred thirty-seven thousand, eight hundred eighty-nine".