2623631 has 8 divisors (see below), whose sum is σ = 2721600. Its totient is φ = 2527360.

The previous prime is 2623597. The next prime is 2623639. The reversal of 2623631 is 1363262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2623631 - 2⁶ = 2623567 is a prime.

It is a super-2 number, since 2×2623631² = 13766879248322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2623597 and 2623606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2623639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3290 + ... + 4008.

It is an arithmetic number, because the mean of its divisors is an integer number (340200).

2^2623631 is an apocalyptic number.

2623631 is a deficient number, since it is larger than the sum of its proper divisors (97969).

2623631 is an equidigital number, since it uses as much as digits as its factorization.

2623631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849.

The product of its digits is 1296, while the sum is 23.

The square root of 2623631 is about 1619.7626369317. The cubic root of 2623631 is about 137.9222239049.

Adding to 2623631 its reverse (1363262), we get a palindrome (3986893).

The spelling of 2623631 in words is "two million, six hundred twenty-three thousand, six hundred thirty-one".