6629381 has 8 divisors (see below), whose sum is σ = 7465728. Its totient is φ = 5832000.

The previous prime is 6629377. The next prime is 6629383. The reversal of 6629381 is 1839266.

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 6629381 - 2² = 6629377 is a prime.

It is a super-2 number, since 2×6629381² = 87897384886322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6629383) 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, 9380 + ... + 10061.

It is an arithmetic number, because the mean of its divisors is an integer number (933216).

Almost surely, 2^6629381 is an apocalyptic number.

It is an amenable number.

6629381 is a deficient number, since it is larger than the sum of its proper divisors (836347).

6629381 is a wasteful number, since it uses less digits than its factorization.

6629381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19483.

The product of its digits is 15552, while the sum is 35.

The square root of 6629381 is about 2574.7584352712. The cubic root of 6629381 is about 187.8556780552.

The spelling of 6629381 in words is "six million, six hundred twenty-nine thousand, three hundred eighty-one".