4013899 has 4 divisors (see below), whose sum is σ = 4021200. Its totient is φ = 4006600.

The previous prime is 4013897. The next prime is 4013909. The reversal of 4013899 is 9983104.

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 4013899 - 2¹ = 4013897 is a prime.

It is a super-2 number, since 2×4013899² = 32222770364402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4013897) 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, 2752 + ... + 3949.

It is an arithmetic number, because the mean of its divisors is an integer number (1005300).

Almost surely, 2^4013899 is an apocalyptic number.

4013899 is a deficient number, since it is larger than the sum of its proper divisors (7301).

4013899 is an equidigital number, since it uses as much as digits as its factorization.

4013899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7300.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 4013899 is about 2003.4717367610. The cubic root of 4013899 is about 158.9237533771.

The spelling of 4013899 in words is "four million, thirteen thousand, eight hundred ninety-nine".