2631317 has 4 divisors (see below), whose sum is σ = 2833740. Its totient is φ = 2428896.

The previous prime is 2631283. The next prime is 2631323. The reversal of 2631317 is 7131362.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 654481 + 1976836 = 809^2 + 1406^2 .

It is a cyclic number.

It is not a de Polignac number, because 2631317 - 2¹⁸ = 2369173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2631292 and 2631301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101192 + ... + 101217.

It is an arithmetic number, because the mean of its divisors is an integer number (708435).

2^2631317 is an apocalyptic number.

It is an amenable number.

2631317 is a deficient number, since it is larger than the sum of its proper divisors (202423).

2631317 is a wasteful number, since it uses less digits than its factorization.

2631317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202422.

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

The square root of 2631317 is about 1622.1334716971. The cubic root of 2631317 is about 138.0567749306.

Adding to 2631317 its reverse (7131362), we get a palindrome (9762679).

The spelling of 2631317 in words is "two million, six hundred thirty-one thousand, three hundred seventeen".