393799124 has 24 divisors (see below), whose sum is σ = 701713320. Its totient is φ = 193342464.

The previous prime is 393799069. The next prime is 393799127. The reversal of 393799124 is 421997393.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2155024 + 391644100 = 1468^2 + 19790^2 .

It is a Smith number, since the sum of its digits (47) 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 (393799127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45272 + ... + 53264.

It is an arithmetic number, because the mean of its divisors is an integer number (29238055).

Almost surely, 2^393799124 is an apocalyptic number.

It is an amenable number.

393799124 is a deficient number, since it is larger than the sum of its proper divisors (307914196).

393799124 is a wasteful number, since it uses less digits than its factorization.

393799124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8219 (or 8217 counting only the distinct ones).

The product of its digits is 367416, while the sum is 47.

The square root of 393799124 is about 19844.3726028313. The cubic root of 393799124 is about 732.9790839058.

The spelling of 393799124 in words is "three hundred ninety-three million, seven hundred ninety-nine thousand, one hundred twenty-four".