6399792 has 90 divisors (see below), whose sum is σ = 20857668. Its totient is φ = 1826496.

The previous prime is 6399761. The next prime is 6399793. The reversal of 6399792 is 2979936.

6399792 is a `hidden beast` number, since 639 + 9 + 7 + 9 + 2 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (6399793) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6603 + ... + 7509.

Almost surely, 2^6399792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6399792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10428834).

6399792 is an abundant number, since it is smaller than the sum of its proper divisors (14457876).

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

6399792 is a wasteful number, since it uses less digits than its factorization.

6399792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935 (or 919 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 6399792 is about 2529.7810181911. The cubic root of 6399792 is about 185.6615419676.

The spelling of 6399792 in words is "six million, three hundred ninety-nine thousand, seven hundred ninety-two".