2989931 has 16 divisors (see below), whose sum is σ = 3648000. Its totient is φ = 2444904.

The previous prime is 2989927. The next prime is 2989937. The reversal of 2989931 is 1399892.

It is not a de Polignac number, because 2989931 - 2² = 2989927 is a prime.

It is a super-2 number, since 2×2989931² = 17879374769522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2989937) 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, 7700 + ... + 8078.

It is an arithmetic number, because the mean of its divisors is an integer number (228000).

2^2989931 is an apocalyptic number.

2989931 is a deficient number, since it is larger than the sum of its proper divisors (658069).

2989931 is an equidigital number, since it uses as much as digits as its factorization.

2989931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 409 counting only the distinct ones).

The product of its digits is 34992, while the sum is 41.

The square root of 2989931 is about 1729.1416945988. The cubic root of 2989931 is about 144.0634204953.

The spelling of 2989931 in words is "two million, nine hundred eighty-nine thousand, nine hundred thirty-one".