6139864 has 16 divisors (see below), whose sum is σ = 11545920. Its totient is φ = 3060960.

The previous prime is 6139853. The next prime is 6139871. The reversal of 6139864 is 4689316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2457 + ... + 4279.

It is an arithmetic number, because the mean of its divisors is an integer number (721620).

Almost surely, 2^6139864 is an apocalyptic number.

It is an amenable number.

6139864 is a deficient number, since it is larger than the sum of its proper divisors (5406056).

6139864 is a wasteful number, since it uses less digits than its factorization.

6139864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250 (or 2246 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 6139864 is about 2477.8748959542. The cubic root of 6139864 is about 183.1131711618.

The spelling of 6139864 in words is "six million, one hundred thirty-nine thousand, eight hundred sixty-four".