6390734 has 32 divisors (see below), whose sum is σ = 11612160. Its totient is φ = 2578752.

The previous prime is 6390733. The next prime is 6390749. The reversal of 6390734 is 4370936.

It is a self number, because there is not a number n which added to its sum of digits gives 6390734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6390733) 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 15 ways as a sum of consecutive naturals, for example, 28547 + ... + 28769.

It is an arithmetic number, because the mean of its divisors is an integer number (362880).

Almost surely, 2^6390734 is an apocalyptic number.

6390734 is a deficient number, since it is larger than the sum of its proper divisors (5221426).

6390734 is a wasteful number, since it uses less digits than its factorization.

6390734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 6390734 is about 2527.9901107402. The cubic root of 6390734 is about 185.5739080630.

The spelling of 6390734 in words is "six million, three hundred ninety thousand, seven hundred thirty-four".