6623629 has 8 divisors (see below), whose sum is σ = 7038360. Its totient is φ = 6221376.

The previous prime is 6623611. The next prime is 6623707. The reversal of 6623629 is 9263266.

It can be written as a sum of positive squares in 4 ways, for example, as 522729 + 6100900 = 723^2 + 2470^2 .

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 6623629 - 2⁹ = 6623117 is a prime.

It is a super-2 number, since 2×6623629² = 87744922259282, 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 = 6623594 and 6623603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620629) 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, 2014 + ... + 4159.

It is an arithmetic number, because the mean of its divisors is an integer number (879795).

Almost surely, 2^6623629 is an apocalyptic number.

It is an amenable number.

6623629 is a deficient number, since it is larger than the sum of its proper divisors (414731).

6623629 is a wasteful number, since it uses less digits than its factorization.

6623629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6239.

The product of its digits is 23328, while the sum is 34.

The square root of 6623629 is about 2573.6411948832. The cubic root of 6623629 is about 187.8013311751.

The spelling of 6623629 in words is "six million, six hundred twenty-three thousand, six hundred twenty-nine".