6390746 has 8 divisors (see below), whose sum is σ = 9809184. Its totient is φ = 3121020.

The previous prime is 6390733. The next prime is 6390749. The reversal of 6390746 is 6470936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6390749) 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 3 ways as a sum of consecutive naturals, for example, 37070 + ... + 37241.

It is an arithmetic number, because the mean of its divisors is an integer number (1226148).

Almost surely, 2^6390746 is an apocalyptic number.

6390746 is a deficient number, since it is larger than the sum of its proper divisors (3418438).

6390746 is a wasteful number, since it uses less digits than its factorization.

6390746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74356.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 6390746 is about 2527.9924841660. The cubic root of 6390746 is about 185.5740242147.

It can be divided in two parts, 63 and 90746, that added together give a palindrome (90809).

The spelling of 6390746 in words is "six million, three hundred ninety thousand, seven hundred forty-six".