8444487 has 4 divisors (see below), whose sum is σ = 11259320. Its totient is φ = 5629656.

The previous prime is 8444477. The next prime is 8444507. The reversal of 8444487 is 7844448.

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

It is not a de Polignac number, because 8444487 - 2¹¹ = 8442439 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 (8444407) 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, 1407412 + ... + 1407417.

It is an arithmetic number, because the mean of its divisors is an integer number (2814830).

Almost surely, 2^8444487 is an apocalyptic number.

8444487 is a deficient number, since it is larger than the sum of its proper divisors (2814833).

8444487 is a wasteful number, since it uses less digits than its factorization.

8444487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814832.

The product of its digits is 114688, while the sum is 39.

The square root of 8444487 is about 2905.9399512034. The cubic root of 8444487 is about 203.6375002171.

Subtracting from 8444487 its sum of digits (39), we obtain a palindrome (8444448).

The spelling of 8444487 in words is "eight million, four hundred forty-four thousand, four hundred eighty-seven".