4487999 has 4 divisors (see below), whose sum is σ = 4493760. Its totient is φ = 4482240.

The previous prime is 4487969. The next prime is 4488007. The reversal of 4487999 is 9997844.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4487999 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 (4487939) 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, 1487 + ... + 3344.

It is an arithmetic number, because the mean of its divisors is an integer number (1123440).

Almost surely, 2^4487999 is an apocalyptic number.

4487999 is a deficient number, since it is larger than the sum of its proper divisors (5761).

4487999 is an equidigital number, since it uses as much as digits as its factorization.

4487999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760.

The product of its digits is 653184, while the sum is 50.

The square root of 4487999 is about 2118.4897922813. The cubic root of 4487999 is about 164.9494672313.

The spelling of 4487999 in words is "four million, four hundred eighty-seven thousand, nine hundred ninety-nine".