4487309 has 4 divisors (see below), whose sum is σ = 4499904. Its totient is φ = 4474716.

The previous prime is 4487299. The next prime is 4487311. The reversal of 4487309 is 9037844.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4487309 - 2⁸ = 4487053 is a prime.

It is a super-2 number, since 2×4487309² = 40271884122962, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4487339) 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, 5747 + ... + 6480.

It is an arithmetic number, because the mean of its divisors is an integer number (1124976).

Almost surely, 2^4487309 is an apocalyptic number.

It is an amenable number.

4487309 is a deficient number, since it is larger than the sum of its proper divisors (12595).

4487309 is a wasteful number, since it uses less digits than its factorization.

4487309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12594.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 4487309 is about 2118.3269341629. The cubic root of 4487309 is about 164.9410135035.

The spelling of 4487309 in words is "four million, four hundred eighty-seven thousand, three hundred nine".