2317631 has 2 divisors, whose sum is σ = 2317632. Its totient is φ = 2317630.

The previous prime is 2317619. The next prime is 2317669. The reversal of 2317631 is 1367132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2317631 is a prime.

It is a super-2 number, since 2×2317631² = 10742826904322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2317597 and 2317606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2317691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1158815 + 1158816.

It is an arithmetic number, because the mean of its divisors is an integer number (1158816).

2^2317631 is an apocalyptic number.

2317631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2317631 is an equidigital number, since it uses as much as digits as its factorization.

2317631 is an evil number, because the sum of its binary digits is even.

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

The square root of 2317631 is about 1522.3767602010. The cubic root of 2317631 is about 132.3370442413.

The spelling of 2317631 in words is "two million, three hundred seventeen thousand, six hundred thirty-one".