4029979 has 2 divisors, whose sum is σ = 4029980. Its totient is φ = 4029978.

The previous prime is 4029973. The next prime is 4030007. The reversal of 4029979 is 9799204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4029979 - 2¹⁵ = 3997211 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4029973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2014989 + 2014990.

It is an arithmetic number, because the mean of its divisors is an integer number (2014990).

Almost surely, 2^4029979 is an apocalyptic number.

4029979 is a deficient number, since it is larger than the sum of its proper divisors (1).

4029979 is an equidigital number, since it uses as much as digits as its factorization.

4029979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 4029979 is about 2007.4807595591. The cubic root of 4029979 is about 159.1356910321.

The spelling of 4029979 in words is "four million, twenty-nine thousand, nine hundred seventy-nine".