2874989 has 8 divisors (see below), whose sum is σ = 3278520. Its totient is φ = 2497536.

The previous prime is 2874979. The next prime is 2875001. The reversal of 2874989 is 9894782.

It can be written as a sum of positive squares in 4 ways, for example, as 96100 + 2778889 = 310^2 + 1667^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2874989 - 2⁸ = 2874733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2874929) 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, 6284 + ... + 6725.

It is an arithmetic number, because the mean of its divisors is an integer number (409815).

2^2874989 is an apocalyptic number.

It is an amenable number.

2874989 is a deficient number, since it is larger than the sum of its proper divisors (403531).

2874989 is a wasteful number, since it uses less digits than its factorization.

2874989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13039.

The product of its digits is 290304, while the sum is 47.

The square root of 2874989 is about 1695.5792520552. The cubic root of 2874989 is about 142.1931676443.

The spelling of 2874989 in words is "two million, eight hundred seventy-four thousand, nine hundred eighty-nine".