2026631 has 2 divisors, whose sum is σ = 2026632. Its totient is φ = 2026630.

The previous prime is 2026627. The next prime is 2026639. The reversal of 2026631 is 1366202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2026631 - 2² = 2026627 is a prime.

It is a super-2 number, since 2×2026631² = 8214466420322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2026639) 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, 1013315 + 1013316.

It is an arithmetic number, because the mean of its divisors is an integer number (1013316).

2^2026631 is an apocalyptic number.

2026631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2026631 is an equidigital number, since it uses as much as digits as its factorization.

2026631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2026631 is about 1423.5979067138. The cubic root of 2026631 is about 126.5488570672.

The spelling of 2026631 in words is "two million, twenty-six thousand, six hundred thirty-one".