5679979 has 2 divisors, whose sum is σ = 5679980. Its totient is φ = 5679978.

The previous prime is 5679977. The next prime is 5679983. The reversal of 5679979 is 9799765.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5679979 - 2¹ = 5679977 is a prime.

It is a super-2 number, since 2×5679979² = 64524322880882, which contains 22 as substring.

Together with 5679977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5679977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2839989 + 2839990.

It is an arithmetic number, because the mean of its divisors is an integer number (2839990).

Almost surely, 2^5679979 is an apocalyptic number.

5679979 is a deficient number, since it is larger than the sum of its proper divisors (1).

5679979 is an equidigital number, since it uses as much as digits as its factorization.

5679979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1071630, while the sum is 52.

The square root of 5679979 is about 2383.2706518564. The cubic root of 5679979 is about 178.4222082021.

The spelling of 5679979 in words is "five million, six hundred seventy-nine thousand, nine hundred seventy-nine".