4267999 has 4 divisors (see below), whose sum is σ = 4284864. Its totient is φ = 4251136.

The previous prime is 4267981. The next prime is 4268009. The reversal of 4267999 is 9997624.

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 4267999 - 2¹⁹ = 3743711 is a prime.

It is a Duffinian number.

4267999 is a lucky number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4267199) 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, 8047 + ... + 8560.

It is an arithmetic number, because the mean of its divisors is an integer number (1071216).

Almost surely, 2^4267999 is an apocalyptic number.

4267999 is a deficient number, since it is larger than the sum of its proper divisors (16865).

4267999 is a wasteful number, since it uses less digits than its factorization.

4267999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16864.

The product of its digits is 244944, while the sum is 46.

The square root of 4267999 is about 2065.9135993550. The cubic root of 4267999 is about 162.2089337926.

It can be divided in two parts, 42679 and 99, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 4267999 in words is "four million, two hundred sixty-seven thousand, nine hundred ninety-nine".