6320399 has 4 divisors (see below), whose sum is σ = 6332040. Its totient is φ = 6308760.

The previous prime is 6320371. The next prime is 6320417. The reversal of 6320399 is 9930236.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6320399 - 2¹⁶ = 6254863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6320329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4964 + ... + 6105.

It is an arithmetic number, because the mean of its divisors is an integer number (1583010).

Almost surely, 2^6320399 is an apocalyptic number.

6320399 is a deficient number, since it is larger than the sum of its proper divisors (11641).

6320399 is a wasteful number, since it uses less digits than its factorization.

6320399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11640.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 6320399 is about 2514.0403735819. The cubic root of 6320399 is about 184.8906000377.

The spelling of 6320399 in words is "six million, three hundred twenty thousand, three hundred ninety-nine".