6390899 has 8 divisors (see below), whose sum is σ = 6689520. Its totient is φ = 6098976.

The previous prime is 6390893. The next prime is 6390907. The reversal of 6390899 is 9980936.

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 6390899 - 2⁴ = 6390883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6390893) 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, 332 + ... + 3590.

It is an arithmetic number, because the mean of its divisors is an integer number (836190).

Almost surely, 2^6390899 is an apocalyptic number.

6390899 is a deficient number, since it is larger than the sum of its proper divisors (298621).

6390899 is a wasteful number, since it uses less digits than its factorization.

6390899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 6390899 is about 2528.0227451508. The cubic root of 6390899 is about 185.5755051373.

The spelling of 6390899 in words is "six million, three hundred ninety thousand, eight hundred ninety-nine".