2629631 has 4 divisors (see below), whose sum is σ = 2634312. Its totient is φ = 2624952.

The previous prime is 2629621. The next prime is 2629639. The reversal of 2629631 is 1369262.

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

It is a cyclic number.

It is not a de Polignac number, because 2629631 - 2¹⁰ = 2628607 is a prime.

It is a super-2 number, since 2×2629631² = 13829918392322, 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 = 2629594 and 2629603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2629639) 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, 1361 + ... + 2666.

It is an arithmetic number, because the mean of its divisors is an integer number (658578).

2^2629631 is an apocalyptic number.

2629631 is a deficient number, since it is larger than the sum of its proper divisors (4681).

2629631 is an equidigital number, since it uses as much as digits as its factorization.

2629631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4680.

The product of its digits is 3888, while the sum is 29.

The square root of 2629631 is about 1621.6137024581. The cubic root of 2629631 is about 138.0272822907.

The spelling of 2629631 in words is "two million, six hundred twenty-nine thousand, six hundred thirty-one".