4020879 has 16 divisors (see below), whose sum is σ = 5608800. Its totient is φ = 2558976.

The previous prime is 4020869. The next prime is 4020889. The reversal of 4020879 is 9780204.

It is an interprime number because it is at equal distance from previous prime (4020869) and next prime (4020889).

It is not a de Polignac number, because 4020879 - 2⁵ = 4020847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9627 + ... + 10035.

It is an arithmetic number, because the mean of its divisors is an integer number (350550).

Almost surely, 2^4020879 is an apocalyptic number.

4020879 is a deficient number, since it is larger than the sum of its proper divisors (1587921).

4020879 is a wasteful number, since it uses less digits than its factorization.

4020879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 4020879 is about 2005.2129562717. The cubic root of 4020879 is about 159.0158205847.

The spelling of 4020879 in words is "four million, twenty thousand, eight hundred seventy-nine".