4487813 has 16 divisors (see below), whose sum is σ = 5256576. Its totient is φ = 3786240.

The previous prime is 4487809. The next prime is 4487843. The reversal of 4487813 is 3187844.

It is a happy number.

It is not a de Polignac number, because 4487813 - 2² = 4487809 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 (4487803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19145 + ... + 19377.

It is an arithmetic number, because the mean of its divisors is an integer number (328536).

Almost surely, 2^4487813 is an apocalyptic number.

It is an amenable number.

4487813 is a deficient number, since it is larger than the sum of its proper divisors (768763).

4487813 is a wasteful number, since it uses less digits than its factorization.

4487813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364.

The product of its digits is 21504, while the sum is 35.

The square root of 4487813 is about 2118.4458926298. The cubic root of 4487813 is about 164.9471884856.

The spelling of 4487813 in words is "four million, four hundred eighty-seven thousand, eight hundred thirteen".