6370639 has 8 divisors (see below), whose sum is σ = 7038720. Its totient is φ = 5717400.

The previous prime is 6370627. The next prime is 6370667. The reversal of 6370639 is 9360736.

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 6370639 - 2⁹ = 6370127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6370619) 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, 2797 + ... + 4534.

It is an arithmetic number, because the mean of its divisors is an integer number (879840).

Almost surely, 2^6370639 is an apocalyptic number.

6370639 is a deficient number, since it is larger than the sum of its proper divisors (668081).

6370639 is a wasteful number, since it uses less digits than its factorization.

6370639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7421.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 6370639 is about 2524.0124801593. The cubic root of 6370639 is about 185.3791978715.

The spelling of 6370639 in words is "six million, three hundred seventy thousand, six hundred thirty-nine".