220468847 has 2 divisors, whose sum is σ = 220468848. Its totient is φ = 220468846.

The previous prime is 220468813. The next prime is 220468867. The reversal of 220468847 is 748864022.

220468847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220468847 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220468867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110234423 + 110234424.

It is an arithmetic number, because the mean of its divisors is an integer number (110234424).

Almost surely, 2^220468847 is an apocalyptic number.

220468847 is a deficient number, since it is larger than the sum of its proper divisors (1).

220468847 is an equidigital number, since it uses as much as digits as its factorization.

220468847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 220468847 is about 14848.1933917901. The cubic root of 220468847 is about 604.1096088888.

The spelling of 220468847 in words is "two hundred twenty million, four hundred sixty-eight thousand, eight hundred forty-seven".