2859631 has 2 divisors, whose sum is σ = 2859632. Its totient is φ = 2859630.

The previous prime is 2859617. The next prime is 2859641. The reversal of 2859631 is 1369582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2859631 - 2⁷ = 2859503 is a prime.

It is a super-2 number, since 2×2859631² = 16354978912322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2859641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1429815 + 1429816.

It is an arithmetic number, because the mean of its divisors is an integer number (1429816).

2^2859631 is an apocalyptic number.

2859631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2859631 is an equidigital number, since it uses as much as digits as its factorization.

2859631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 2859631 is about 1691.0443518725. The cubic root of 2859631 is about 141.9395199693.

The spelling of 2859631 in words is "two million, eight hundred fifty-nine thousand, six hundred thirty-one".