4013399 has 4 divisors (see below), whose sum is σ = 4322136. Its totient is φ = 3704664.

The previous prime is 4013369. The next prime is 4013407. The reversal of 4013399 is 9933104.

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 4013399 - 2²⁰ = 2964823 is a prime.

It is a super-2 number, since 2×4013399² = 32214743066402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013329) 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, 154349 + ... + 154374.

It is an arithmetic number, because the mean of its divisors is an integer number (1080534).

Almost surely, 2^4013399 is an apocalyptic number.

4013399 is a deficient number, since it is larger than the sum of its proper divisors (308737).

4013399 is a wasteful number, since it uses less digits than its factorization.

4013399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308736.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 4013399 is about 2003.3469494823. The cubic root of 4013399 is about 158.9171542095.

The spelling of 4013399 in words is "four million, thirteen thousand, three hundred ninety-nine".