163782473 has 2 divisors, whose sum is σ = 163782474. Its totient is φ = 163782472.

The previous prime is 163782433. The next prime is 163782481. The reversal of 163782473 is 374287361.

163782473 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 can be written as a sum of positive squares in only one way, i.e., 153561664 + 10220809 = 12392^2 + 3197^2 .

It is a cyclic number.

It is not a de Polignac number, because 163782473 - 2⁸ = 163782217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163782473.

It is not a weakly prime, because it can be changed into another prime (163782433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81891236 + 81891237.

It is an arithmetic number, because the mean of its divisors is an integer number (81891237).

Almost surely, 2^163782473 is an apocalyptic number.

It is an amenable number.

163782473 is a deficient number, since it is larger than the sum of its proper divisors (1).

163782473 is an equidigital number, since it uses as much as digits as its factorization.

163782473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 41.

The square root of 163782473 is about 12797.7526542749. The cubic root of 163782473 is about 547.1282526100.

The spelling of 163782473 in words is "one hundred sixty-three million, seven hundred eighty-two thousand, four hundred seventy-three".