2878669 has 8 divisors (see below), whose sum is σ = 2963520. Its totient is φ = 2795136.

The previous prime is 2878639. The next prime is 2878679. The reversal of 2878669 is 9668782.

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 2878669 - 2¹⁷ = 2747597 is a prime.

It is a super-2 number, since 2×2878669² = 16573470423122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878639) 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, 5472 + ... + 5974.

It is an arithmetic number, because the mean of its divisors is an integer number (370440).

2^2878669 is an apocalyptic number.

It is an amenable number.

2878669 is a deficient number, since it is larger than the sum of its proper divisors (84851).

2878669 is an equidigital number, since it uses as much as digits as its factorization.

2878669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659.

The product of its digits is 290304, while the sum is 46.

The square root of 2878669 is about 1696.6640798932. The cubic root of 2878669 is about 142.2538110940.

The spelling of 2878669 in words is "two million, eight hundred seventy-eight thousand, six hundred sixty-nine".