2680631 has 2 divisors, whose sum is σ = 2680632. Its totient is φ = 2680630.

The previous prime is 2680619. The next prime is 2680661. The reversal of 2680631 is 1360862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2680631 - 2⁶ = 2680567 is a prime.

It is a super-2 number, since 2×2680631² = 14371565116322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2680631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2680661) 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, 1340315 + 1340316.

It is an arithmetic number, because the mean of its divisors is an integer number (1340316).

2^2680631 is an apocalyptic number.

2680631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2680631 is an equidigital number, since it uses as much as digits as its factorization.

2680631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2680631 is about 1637.2632653303. The cubic root of 2680631 is about 138.9138917713.

The spelling of 2680631 in words is "two million, six hundred eighty thousand, six hundred thirty-one".