163472869 has 6 divisors (see below), whose sum is σ = 190162374. Its totient is φ = 140119560.

The previous prime is 163472861. The next prime is 163472873. The reversal of 163472869 is 968274361.

It can be written as a sum of positive squares in only one way, i.e., 129390625 + 34082244 = 11375^2 + 5838^2 .

It is not a de Polignac number, because 163472869 - 2³ = 163472861 is a prime.

It is a super-2 number, since 2×163472869² = 53446757798182322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163472861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1668042 + ... + 1668139.

It is an arithmetic number, because the mean of its divisors is an integer number (31693729).

Almost surely, 2^163472869 is an apocalyptic number.

It is an amenable number.

163472869 is a deficient number, since it is larger than the sum of its proper divisors (26689505).

163472869 is an equidigital number, since it uses as much as digits as its factorization.

163472869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336195 (or 3336188 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 163472869 is about 12785.6509024766. The cubic root of 163472869 is about 546.7832829656.

The spelling of 163472869 in words is "one hundred sixty-three million, four hundred seventy-two thousand, eight hundred sixty-nine".