4291999 has 4 divisors (see below), whose sum is σ = 4296600. Its totient is φ = 4287400.

The previous prime is 4291979. The next prime is 4292009. The reversal of 4291999 is 9991924.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4291999 - 2²¹ = 2194847 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 (4291949) 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, 349 + ... + 2950.

It is an arithmetic number, because the mean of its divisors is an integer number (1074150).

Almost surely, 2^4291999 is an apocalyptic number.

4291999 is a deficient number, since it is larger than the sum of its proper divisors (4601).

4291999 is a wasteful number, since it uses less digits than its factorization.

4291999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4600.

The product of its digits is 52488, while the sum is 43.

The square root of 4291999 is about 2071.7140246665. The cubic root of 4291999 is about 162.5124124641.

The spelling of 4291999 in words is "four million, two hundred ninety-one thousand, nine hundred ninety-nine".