163622473 has 16 divisors (see below), whose sum is σ = 192626560. Its totient is φ = 136048896.

The previous prime is 163622461. The next prime is 163622477. The reversal of 163622473 is 374226361.

It is a 12-Lehmer number, since φ(163622473) divides (163622473-1)¹².

It is a cyclic number.

It is not a de Polignac number, because 163622473 - 2¹³ = 163614281 is a prime.

It is the 12792-nd Hogben number.

It is not an unprimeable number, because it can be changed into a prime (163622477) by changing a digit.

It is a nontrivial repunit in base 12791.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111418 + ... + 112876.

It is an arithmetic number, because the mean of its divisors is an integer number (12039160).

Almost surely, 2^163622473 is an apocalyptic number.

It is an amenable number.

163622473 is a deficient number, since it is larger than the sum of its proper divisors (29004087).

163622473 is a wasteful number, since it uses less digits than its factorization.

163622473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936.

The product of its digits is 36288, while the sum is 34.

The square root of 163622473 is about 12791.5000293163. The cubic root of 163622473 is about 546.9500303607.

The spelling of 163622473 in words is "one hundred sixty-three million, six hundred twenty-two thousand, four hundred seventy-three".