4487818 has 4 divisors (see below), whose sum is σ = 6731730. Its totient is φ = 2243908.

The previous prime is 4487809. The next prime is 4487843. The reversal of 4487818 is 8187844.

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

It can be written as a sum of positive squares in only one way, i.e., 4313929 + 173889 = 2077^2 + 417^2 .

It is a super-2 number, since 2×4487818² = 40281020802248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121953 + ... + 1121956.

Almost surely, 2^4487818 is an apocalyptic number.

4487818 is a deficient number, since it is larger than the sum of its proper divisors (2243912).

4487818 is a wasteful number, since it uses less digits than its factorization.

4487818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243911.

The product of its digits is 57344, while the sum is 40.

The square root of 4487818 is about 2118.4470727398. The cubic root of 4487818 is about 164.9472497431.

The spelling of 4487818 in words is "four million, four hundred eighty-seven thousand, eight hundred eighteen".