4089879 has 8 divisors (see below), whose sum is σ = 6059120. Its totient is φ = 2726568.

The previous prime is 4089871. The next prime is 4089887. The reversal of 4089879 is 9789804.

It is an interprime number because it is at equal distance from previous prime (4089871) and next prime (4089887).

It is not a de Polignac number, because 4089879 - 2³ = 4089871 is a prime.

It is a super-2 number, since 2×4089879² = 33454220469282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4089871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75712 + ... + 75765.

It is an arithmetic number, because the mean of its divisors is an integer number (757390).

Almost surely, 2^4089879 is an apocalyptic number.

4089879 is a deficient number, since it is larger than the sum of its proper divisors (1969241).

4089879 is a wasteful number, since it uses less digits than its factorization.

4089879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151486 (or 151480 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 4089879 is about 2022.3449260697. The cubic root of 4089879 is about 159.9202597451.

The spelling of 4089879 in words is "four million, eighty-nine thousand, eight hundred seventy-nine".