220468477 has 2 divisors, whose sum is σ = 220468478. Its totient is φ = 220468476.

The previous prime is 220468447. The next prime is 220468511. The reversal of 220468477 is 774864022.

220468477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199911321 + 20557156 = 14139^2 + 4534^2 .

It is a cyclic number.

It is not a de Polignac number, because 220468477 - 2¹¹ = 220466429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220468447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110234238 + 110234239.

It is an arithmetic number, because the mean of its divisors is an integer number (110234239).

Almost surely, 2^220468477 is an apocalyptic number.

It is an amenable number.

220468477 is a deficient number, since it is larger than the sum of its proper divisors (1).

220468477 is an equidigital number, since it uses as much as digits as its factorization.

220468477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 220468477 is about 14848.1809323567. The cubic root of 220468477 is about 604.1092709413.

The spelling of 220468477 in words is "two hundred twenty million, four hundred sixty-eight thousand, four hundred seventy-seven".