2977889 has 12 divisors (see below), whose sum is σ = 3214116. Its totient is φ = 2757888.

The previous prime is 2977883. The next prime is 2977901. The reversal of 2977889 is 9887792.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 667489 + 2310400 = 817^2 + 1520^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2977889 is a prime.

It is an Ulam number.

Its product of digits (508032) is a multiple of the sum of its prime factors (224).

It is not an unprimeable number, because it can be changed into a prime (2977883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26297 + ... + 26409.

It is an arithmetic number, because the mean of its divisors is an integer number (267843).

2^2977889 is an apocalyptic number.

It is an amenable number.

2977889 is a deficient number, since it is larger than the sum of its proper divisors (236227).

2977889 is a wasteful number, since it uses less digits than its factorization.

2977889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 205 counting only the distinct ones).

The product of its digits is 508032, while the sum is 50.

The square root of 2977889 is about 1725.6561071083. The cubic root of 2977889 is about 143.8697542725.

Subtracting 2977889 from its reverse (9887792), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2977889 in words is "two million, nine hundred seventy-seven thousand, eight hundred eighty-nine".