6744399 has 4 divisors (see below), whose sum is σ = 8992536. Its totient is φ = 4496264.

The previous prime is 6744389. The next prime is 6744403. The reversal of 6744399 is 9934476.

6744399 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6744399 - 2⁴ = 6744383 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 6744399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6744319) 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, 1124064 + ... + 1124069.

It is an arithmetic number, because the mean of its divisors is an integer number (2248134).

Almost surely, 2^6744399 is an apocalyptic number.

6744399 is a deficient number, since it is larger than the sum of its proper divisors (2248137).

6744399 is a wasteful number, since it uses less digits than its factorization.

6744399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248136.

The product of its digits is 163296, while the sum is 42.

The square root of 6744399 is about 2596.9980747009. The cubic root of 6744399 is about 188.9358702949.

The spelling of 6744399 in words is "six million, seven hundred forty-four thousand, three hundred ninety-nine".