6239979 has 12 divisors (see below), whose sum is σ = 9049456. Its totient is φ = 4143312.

The previous prime is 6239957. The next prime is 6240001. The reversal of 6239979 is 9799326.

It is an interprime number because it is at equal distance from previous prime (6239957) and next prime (6240001).

It is not a de Polignac number, because 6239979 - 2¹⁵ = 6207211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6239929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1242 + ... + 3744.

Almost surely, 2^6239979 is an apocalyptic number.

6239979 is a deficient number, since it is larger than the sum of its proper divisors (2809477).

6239979 is a wasteful number, since it uses less digits than its factorization.

6239979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786 (or 2783 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 6239979 is about 2497.9949959918. The cubic root of 6239979 is about 184.1030751240.

The spelling of 6239979 in words is "six million, two hundred thirty-nine thousand, nine hundred seventy-nine".