2939889 has 8 divisors (see below), whose sum is σ = 4126240. Its totient is φ = 1856736.

The previous prime is 2939879. The next prime is 2939891. The reversal of 2939889 is 9889392.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2939889 - 2⁴ = 2939873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2939869) 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, 25732 + ... + 25845.

It is an arithmetic number, because the mean of its divisors is an integer number (515780).

2^2939889 is an apocalyptic number.

It is an amenable number.

2939889 is a deficient number, since it is larger than the sum of its proper divisors (1186351).

2939889 is a wasteful number, since it uses less digits than its factorization.

2939889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51599.

The product of its digits is 279936, while the sum is 48.

The square root of 2939889 is about 1714.6104513854. The cubic root of 2939889 is about 143.2551722165.

It can be divided in two parts, 2939 and 889, that added together give a triangular number (3828 = T₈₇).

The spelling of 2939889 in words is "two million, nine hundred thirty-nine thousand, eight hundred eighty-nine".