6900399 has 24 divisors (see below), whose sum is σ = 11112192. Its totient is φ = 4090320.

The previous prime is 6900379. The next prime is 6900403. The reversal of 6900399 is 9930096.

6900399 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6900399 - 2⁵ = 6900367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6900359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3912 + ... + 5394.

It is an arithmetic number, because the mean of its divisors is an integer number (463008).

Almost surely, 2^6900399 is an apocalyptic number.

6900399 is a deficient number, since it is larger than the sum of its proper divisors (4211793).

6900399 is a wasteful number, since it uses less digits than its factorization.

6900399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 6900399 is about 2626.8610545668. The cubic root of 6900399 is about 190.3814957272.

The spelling of 6900399 in words is "six million, nine hundred thousand, three hundred ninety-nine".