6339665 has 4 divisors (see below), whose sum is σ = 7607604. Its totient is φ = 5071728.

The previous prime is 6339653. The next prime is 6339677. The reversal of 6339665 is 5669336.

6339665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (6339653) and next prime (6339677).

It can be written as a sum of positive squares in 2 ways, for example, as 2050624 + 4289041 = 1432^2 + 2071^2 .

It is a cyclic number.

It is not a de Polignac number, because 6339665 - 2¹⁴ = 6323281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633962 + ... + 633971.

It is an arithmetic number, because the mean of its divisors is an integer number (1901901).

Almost surely, 2^6339665 is an apocalyptic number.

It is an amenable number.

6339665 is a deficient number, since it is larger than the sum of its proper divisors (1267939).

6339665 is a wasteful number, since it uses less digits than its factorization.

6339665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267938.

The product of its digits is 87480, while the sum is 38.

The square root of 6339665 is about 2517.8691387759. The cubic root of 6339665 is about 185.0782722113.

The spelling of 6339665 in words is "six million, three hundred thirty-nine thousand, six hundred sixty-five".