2889431979 has 16 divisors (see below), whose sum is σ = 4661941248. Its totient is φ = 1553980032.

The previous prime is 2889431977. The next prime is 2889432037. The reversal of 2889431979 is 9791349882.

It is not a de Polignac number, because 2889431979 - 2¹ = 2889431977 is a prime.

It is a super-2 number, since 2×2889431979² = 16697634322535712882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2889431977) 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, 4046467 + ... + 4047180.

It is an arithmetic number, because the mean of its divisors is an integer number (291371328).

Almost surely, 2^2889431979 is an apocalyptic number.

2889431979 is a deficient number, since it is larger than the sum of its proper divisors (1772509269).

2889431979 is a wasteful number, since it uses less digits than its factorization.

2889431979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8093674.

The product of its digits is 7838208, while the sum is 60.

The square root of 2889431979 is about 53753.4369040715. The cubic root of 2889431979 is about 1424.3088026154.

The spelling of 2889431979 in words is "two billion, eight hundred eighty-nine million, four hundred thirty-one thousand, nine hundred seventy-nine".