6398769 has 8 divisors (see below), whose sum is σ = 9188032. Its totient is φ = 3937680.

The previous prime is 6398767. The next prime is 6398789. The reversal of 6398769 is 9678936.

It is a happy number.

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

It is not a de Polignac number, because 6398769 - 2¹ = 6398767 is a prime.

It is a super-2 number, since 2×6398769² = 81888489430722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6398767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81997 + ... + 82074.

It is an arithmetic number, because the mean of its divisors is an integer number (1148504).

Almost surely, 2^6398769 is an apocalyptic number.

It is an amenable number.

6398769 is a deficient number, since it is larger than the sum of its proper divisors (2789263).

6398769 is a wasteful number, since it uses less digits than its factorization.

6398769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164087.

The product of its digits is 489888, while the sum is 48.

The square root of 6398769 is about 2529.5788186969. The cubic root of 6398769 is about 185.6516488399.

The spelling of 6398769 in words is "six million, three hundred ninety-eight thousand, seven hundred sixty-nine".