84647223 has 24 divisors (see below), whose sum is σ = 130485680. Its totient is φ = 52721280.

The previous prime is 84647219. The next prime is 84647239. The reversal of 84647223 is 32274648.

84647223 is a `hidden beast` number, since 8 + 4 + 647 + 2 + 2 + 3 = 666.

It is not a de Polignac number, because 84647223 - 2² = 84647219 is a prime.

It is a super-2 number, since 2×84647223² = 14330304723223458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84647203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9093 + ... + 15873.

Almost surely, 2^84647223 is an apocalyptic number.

84647223 is a deficient number, since it is larger than the sum of its proper divisors (45838457).

84647223 is a wasteful number, since it uses less digits than its factorization.

84647223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6879 (or 6876 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 84647223 is about 9200.3925459732. The cubic root of 84647223 is about 439.0738490998.

The spelling of 84647223 in words is "eighty-four million, six hundred forty-seven thousand, two hundred twenty-three".