6389390 has 32 divisors (see below), whose sum is σ = 13293504. Its totient is φ = 2165760.

The previous prime is 6389387. The next prime is 6389393. The reversal of 6389390 is 939836.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6389387) and next prime (6389393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6389393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6320 + ... + 7260.

It is an arithmetic number, because the mean of its divisors is an integer number (415422).

Almost surely, 2^6389390 is an apocalyptic number.

6389390 is an abundant number, since it is smaller than the sum of its proper divisors (6904114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6389390 is a wasteful number, since it uses less digits than its factorization.

6389390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 6389390 is about 2527.7242729380. The cubic root of 6389390 is about 185.5608981427.

The spelling of 6389390 in words is "six million, three hundred eighty-nine thousand, three hundred ninety".