8043399 has 72 divisors (see below), whose sum is σ = 15436512. Its totient is φ = 3991680.

The previous prime is 8043367. The next prime is 8043401. The reversal of 8043399 is 9933408.

It is not a de Polignac number, because 8043399 - 2⁵ = 8043367 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8043349) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 131829 + ... + 131889.

It is an arithmetic number, because the mean of its divisors is an integer number (214396).

Almost surely, 2^8043399 is an apocalyptic number.

8043399 is the 1794-th heptagonal number.

8043399 is a deficient number, since it is larger than the sum of its proper divisors (7393113).

8043399 is a wasteful number, since it uses less digits than its factorization.

8043399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 8043399 is about 2836.0886798547. The cubic root of 8043399 is about 200.3610063135.

The spelling of 8043399 in words is "eight million, forty-three thousand, three hundred ninety-nine".