6339725 has 24 divisors (see below), whose sum is σ = 9517248. Its totient is φ = 4089600.

The previous prime is 6339721. The next prime is 6339757. The reversal of 6339725 is 5279336.

It is not a de Polignac number, because 6339725 - 2² = 6339721 is a prime.

It is a super-2 number, since 2×6339725² = 80384226151250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6339721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1910 + ... + 4040.

It is an arithmetic number, because the mean of its divisors is an integer number (396552).

Almost surely, 2^6339725 is an apocalyptic number.

It is an amenable number.

6339725 is a deficient number, since it is larger than the sum of its proper divisors (3177523).

6339725 is a wasteful number, since it uses less digits than its factorization.

6339725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165 (or 2160 counting only the distinct ones).

The product of its digits is 34020, while the sum is 35.

The square root of 6339725 is about 2517.8810535845. The cubic root of 6339725 is about 185.0788560834.

The spelling of 6339725 in words is "six million, three hundred thirty-nine thousand, seven hundred twenty-five".