2371631 has 2 divisors, whose sum is σ = 2371632. Its totient is φ = 2371630.

The previous prime is 2371627. The next prime is 2371639. The reversal of 2371631 is 1361732.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2371631 - 2² = 2371627 is a prime.

It is a super-2 number, since 2×2371631² = 11249267200322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2371597 and 2371606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2371639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1185815 + 1185816.

It is an arithmetic number, because the mean of its divisors is an integer number (1185816).

2^2371631 is an apocalyptic number.

2371631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2371631 is an equidigital number, since it uses as much as digits as its factorization.

2371631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 23.

The square root of 2371631 is about 1540.0100649022. The cubic root of 2371631 is about 133.3569659499.

The spelling of 2371631 in words is "two million, three hundred seventy-one thousand, six hundred thirty-one".