223012647 has 48 divisors (see below), whose sum is σ = 400746528. Its totient is φ = 117411840.

The previous prime is 223012637. The next prime is 223012661. The reversal of 223012647 is 746210322.

223012647 is a `hidden beast` number, since 2 + 2 + 3 + 0 + 12 + 647 = 666.

It is not a de Polignac number, because 223012647 - 2¹⁰ = 223011623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223012647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223012607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16783 + ... + 26975.

It is an arithmetic number, because the mean of its divisors is an integer number (8348886).

Almost surely, 2^223012647 is an apocalyptic number.

223012647 is a deficient number, since it is larger than the sum of its proper divisors (177733881).

223012647 is a wasteful number, since it uses less digits than its factorization.

223012647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10240 (or 10237 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 223012647 is about 14933.6079699448. The cubic root of 223012647 is about 606.4241630627.

Adding to 223012647 its reverse (746210322), we get a palindrome (969222969).

The spelling of 223012647 in words is "two hundred twenty-three million, twelve thousand, six hundred forty-seven".