6439137 has 8 divisors (see below), whose sum is σ = 8648736. Its totient is φ = 4261152.

The previous prime is 6439133. The next prime is 6439159. The reversal of 6439137 is 7319346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6439137 - 2² = 6439133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6439098 and 6439107.

It is not an unprimeable number, because it can be changed into a prime (6439133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7423 + ... + 8244.

It is an arithmetic number, because the mean of its divisors is an integer number (1081092).

Almost surely, 2^6439137 is an apocalyptic number.

It is an amenable number.

6439137 is a deficient number, since it is larger than the sum of its proper divisors (2209599).

6439137 is a wasteful number, since it uses less digits than its factorization.

6439137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15807.

The product of its digits is 13608, while the sum is 33.

The square root of 6439137 is about 2537.5454675729. The cubic root of 6439137 is about 186.0412383994.

The spelling of 6439137 in words is "six million, four hundred thirty-nine thousand, one hundred thirty-seven".