2878591 has 2 divisors, whose sum is σ = 2878592. Its totient is φ = 2878590.

The previous prime is 2878573. The next prime is 2878597. The reversal of 2878591 is 1958782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2878591 - 2¹⁵ = 2845823 is a prime.

It is a super-2 number, since 2×2878591² = 16572572290562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2878597) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439295 + 1439296.

It is an arithmetic number, because the mean of its divisors is an integer number (1439296).

2^2878591 is an apocalyptic number.

2878591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2878591 is an equidigital number, since it uses as much as digits as its factorization.

2878591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 40.

The square root of 2878591 is about 1696.6410934549. The cubic root of 2878591 is about 142.2525262528.

The spelling of 2878591 in words is "two million, eight hundred seventy-eight thousand, five hundred ninety-one".