2872989 has 28 divisors (see below), whose sum is σ = 4931616. Its totient is φ = 1638792.

The previous prime is 2872981. The next prime is 2872997. The reversal of 2872989 is 9892782.

It is an interprime number because it is at equal distance from previous prime (2872981) and next prime (2872997).

It is not a de Polignac number, because 2872989 - 2³ = 2872981 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872981) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4822 + ... + 5384.

2^2872989 is an apocalyptic number.

It is an amenable number.

2872989 is a deficient number, since it is larger than the sum of its proper divisors (2058627).

2872989 is an frugal number, since it uses more digits than its factorization.

2872989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 573 counting only the distinct ones).

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

The square root of 2872989 is about 1694.9893804977. The cubic root of 2872989 is about 142.1601875407.

The spelling of 2872989 in words is "two million, eight hundred seventy-two thousand, nine hundred eighty-nine".