6264399 has 4 divisors (see below), whose sum is σ = 8352536. Its totient is φ = 4176264.

The previous prime is 6264389. The next prime is 6264409. The reversal of 6264399 is 9934626.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (6264389) and next prime (6264409).

It is not a de Polignac number, because 6264399 - 2⁴ = 6264383 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6264329) 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, 1044064 + ... + 1044069.

It is an arithmetic number, because the mean of its divisors is an integer number (2088134).

Almost surely, 2^6264399 is an apocalyptic number.

6264399 is a deficient number, since it is larger than the sum of its proper divisors (2088137).

6264399 is a wasteful number, since it uses less digits than its factorization.

6264399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088136.

The product of its digits is 69984, while the sum is 39.

The square root of 6264399 is about 2502.8781432583. The cubic root of 6264399 is about 184.3429234249.

The spelling of 6264399 in words is "six million, two hundred sixty-four thousand, three hundred ninety-nine".