4111999 has 4 divisors (see below), whose sum is σ = 4328440. Its totient is φ = 3895560.

The previous prime is 4111993. The next prime is 4112021. The reversal of 4111999 is 9991114.

It is a happy number.

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 4111999 - 2⁵ = 4111967 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 (4111993) 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, 108192 + ... + 108229.

It is an arithmetic number, because the mean of its divisors is an integer number (1082110).

Almost surely, 2^4111999 is an apocalyptic number.

4111999 is a deficient number, since it is larger than the sum of its proper divisors (216441).

4111999 is a wasteful number, since it uses less digits than its factorization.

4111999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216440.

The product of its digits is 2916, while the sum is 34.

The square root of 4111999 is about 2027.8064503300. The cubic root of 4111999 is about 160.2080496661.

The spelling of 4111999 in words is "four million, one hundred eleven thousand, nine hundred ninety-nine".