163888343 has 2 divisors, whose sum is σ = 163888344. Its totient is φ = 163888342.

The previous prime is 163888339. The next prime is 163888393. The reversal of 163888343 is 343888361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163888343 - 2² = 163888339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163888294 and 163888303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163888393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81944171 + 81944172.

It is an arithmetic number, because the mean of its divisors is an integer number (81944172).

Almost surely, 2^163888343 is an apocalyptic number.

163888343 is a deficient number, since it is larger than the sum of its proper divisors (1).

163888343 is an equidigital number, since it uses as much as digits as its factorization.

163888343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 44.

The square root of 163888343 is about 12801.8882591593. Note that the first 3 decimals coincide. The cubic root of 163888343 is about 547.2461162426.

The spelling of 163888343 in words is "one hundred sixty-three million, eight hundred eighty-eight thousand, three hundred forty-three".