444785947 has 4 divisors (see below), whose sum is σ = 444834720. Its totient is φ = 444737176.

The previous prime is 444785903. The next prime is 444785951. The reversal of 444785947 is 749587444.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444785947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444785894 and 444785903.

It is not an unprimeable number, because it can be changed into a prime (444785447) 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, 6172 + ... + 30457.

It is an arithmetic number, because the mean of its divisors is an integer number (111208680).

Almost surely, 2^444785947 is an apocalyptic number.

444785947 is a deficient number, since it is larger than the sum of its proper divisors (48773).

444785947 is a wasteful number, since it uses less digits than its factorization.

444785947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48772.

The product of its digits is 4515840, while the sum is 52.

The square root of 444785947 is about 21089.9489567898. The cubic root of 444785947 is about 763.3382397469.

The spelling of 444785947 in words is "four hundred forty-four million, seven hundred eighty-five thousand, nine hundred forty-seven".