6839172 has 18 divisors (see below), whose sum is σ = 17287998. Its totient is φ = 2279712.

The previous prime is 6839153. The next prime is 6839197. The reversal of 6839172 is 2719386.

It can be written as a sum of positive squares in only one way, i.e., 6471936 + 367236 = 2544^2 + 606^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 189977 = 6839172 / (6 + 8 + 3 + 9 + 1 + 7 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94953 + ... + 95024.

Almost surely, 2^6839172 is an apocalyptic number.

It is an amenable number.

6839172 is an abundant number, since it is smaller than the sum of its proper divisors (10448826).

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

6839172 is a wasteful number, since it uses less digits than its factorization.

6839172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189987 (or 189982 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 6839172 is about 2615.1810644772. The cubic root of 6839172 is about 189.8167392705.

The spelling of 6839172 in words is "six million, eight hundred thirty-nine thousand, one hundred seventy-two".