6629723 has 4 divisors (see below), whose sum is σ = 6640248. Its totient is φ = 6619200.

The previous prime is 6629713. The next prime is 6629729. The reversal of 6629723 is 3279266.

It is a happy number.

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 6629723 - 2¹⁴ = 6613339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6629729) 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, 4253 + ... + 5598.

It is an arithmetic number, because the mean of its divisors is an integer number (1660062).

Almost surely, 2^6629723 is an apocalyptic number.

6629723 is a deficient number, since it is larger than the sum of its proper divisors (10525).

6629723 is an equidigital number, since it uses as much as digits as its factorization.

6629723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10524.

The product of its digits is 27216, while the sum is 35.

The square root of 6629723 is about 2574.8248484120. The cubic root of 6629723 is about 187.8589083989.

The spelling of 6629723 in words is "six million, six hundred twenty-nine thousand, seven hundred twenty-three".