6390769 has 8 divisors (see below), whose sum is σ = 7967808. Its totient is φ = 4979760.

The previous prime is 6390763. The next prime is 6390799. The reversal of 6390769 is 9670936.

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

It is a cyclic number.

It is not a de Polignac number, because 6390769 - 2⁷ = 6390641 is a prime.

It is a super-2 number, since 2×6390769² = 81683856822722, which contains 22 as substring.

It is a Duffinian number.

6390769 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6390763) 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 7 ways as a sum of consecutive naturals, for example, 41422 + ... + 41575.

It is an arithmetic number, because the mean of its divisors is an integer number (995976).

Almost surely, 2^6390769 is an apocalyptic number.

It is an amenable number.

6390769 is a deficient number, since it is larger than the sum of its proper divisors (1577039).

6390769 is a wasteful number, since it uses less digits than its factorization.

6390769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83015.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 6390769 is about 2527.9970332261. The cubic root of 6390769 is about 185.5742468386.

The spelling of 6390769 in words is "six million, three hundred ninety thousand, seven hundred sixty-nine".