4201999 has 4 divisors (see below), whose sum is σ = 4281336. Its totient is φ = 4122664.

The previous prime is 4201969. The next prime is 4202017. The reversal of 4201999 is 9991024.

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 4201999 - 2¹³ = 4193807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4201969) 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, 39589 + ... + 39694.

It is an arithmetic number, because the mean of its divisors is an integer number (1070334).

Almost surely, 2^4201999 is an apocalyptic number.

4201999 is a deficient number, since it is larger than the sum of its proper divisors (79337).

4201999 is an equidigital number, since it uses as much as digits as its factorization.

4201999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79336.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 4201999 is about 2049.8778012360. The cubic root of 4201999 is about 161.3684577160.

The spelling of 4201999 in words is "four million, two hundred one thousand, nine hundred ninety-nine".