6839477 has 4 divisors (see below), whose sum is σ = 6855360. Its totient is φ = 6823596.

The previous prime is 6839471. The next prime is 6839489. The reversal of 6839477 is 7749386.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7749386 = 2 ⋅3874693.

It is a cyclic number.

It is not a de Polignac number, because 6839477 - 2⁴ = 6839461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6839471) 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, 7277 + ... + 8162.

It is an arithmetic number, because the mean of its divisors is an integer number (1713840).

Almost surely, 2^6839477 is an apocalyptic number.

It is an amenable number.

6839477 is a deficient number, since it is larger than the sum of its proper divisors (15883).

6839477 is a wasteful number, since it uses less digits than its factorization.

6839477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15882.

The product of its digits is 254016, while the sum is 44.

The square root of 6839477 is about 2615.2393771890. The cubic root of 6839477 is about 189.8195609203.

Subtracting 6839477 from its reverse (7749386), we obtain a palindrome (909909).

The spelling of 6839477 in words is "six million, eight hundred thirty-nine thousand, four hundred seventy-seven".