447772745 has 16 divisors (see below), whose sum is σ = 614640000. Its totient is φ = 306768384.

The previous prime is 447772739. The next prime is 447772781. The reversal of 447772745 is 547277744.

It is a cyclic number.

It is not a de Polignac number, because 447772745 - 2⁶ = 447772681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 447772745.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38594 + ... + 48836.

It is an arithmetic number, because the mean of its divisors is an integer number (38415000).

Almost surely, 2^447772745 is an apocalyptic number.

It is an amenable number.

447772745 is a deficient number, since it is larger than the sum of its proper divisors (166867255).

447772745 is a wasteful number, since it uses less digits than its factorization.

447772745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11504.

The product of its digits is 1536640, while the sum is 47.

The square root of 447772745 is about 21160.6414127739. The cubic root of 447772745 is about 765.0430693282.

The spelling of 447772745 in words is "four hundred forty-seven million, seven hundred seventy-two thousand, seven hundred forty-five".