5999979 has 4 divisors (see below), whose sum is σ = 7999976. Its totient is φ = 3999984.

The previous prime is 5999947. The next prime is 5999993. The reversal of 5999979 is 9799995.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5999979 - 2⁵ = 5999947 is a prime.

It is a D-number.

It is a Duffinian number.

5999979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5999909) 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, 999994 + ... + 999999.

It is an arithmetic number, because the mean of its divisors is an integer number (1999994).

Almost surely, 2^5999979 is an apocalyptic number.

5999979 is a deficient number, since it is larger than the sum of its proper divisors (1999997).

5999979 is a wasteful number, since it uses less digits than its factorization.

5999979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999996.

The product of its digits is 2066715, while the sum is 57.

The square root of 5999979 is about 2449.4854561724. The cubic root of 5999979 is about 181.7118472856.

It can be divided in two parts, 599997 and 9, that added together give a palindrome (600006).

The spelling of 5999979 in words is "five million, nine hundred ninety-nine thousand, nine hundred seventy-nine".