163826623 has 2 divisors, whose sum is σ = 163826624. Its totient is φ = 163826622.

The previous prime is 163826617. The next prime is 163826627. The reversal of 163826623 is 326628361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163826623 - 2²¹ = 161729471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163826627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81913311 + 81913312.

It is an arithmetic number, because the mean of its divisors is an integer number (81913312).

Almost surely, 2^163826623 is an apocalyptic number.

163826623 is a deficient number, since it is larger than the sum of its proper divisors (1).

163826623 is an equidigital number, since it uses as much as digits as its factorization.

163826623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The square root of 163826623 is about 12799.4774502712. The cubic root of 163826623 is about 547.1774103774.

It can be divided in two parts, 16382 and 6623, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 163826623 in words is "one hundred sixty-three million, eight hundred twenty-six thousand, six hundred twenty-three".