163897349 has 16 divisors (see below), whose sum is σ = 204619776. Its totient is φ = 127537200.

The previous prime is 163897303. The next prime is 163897351. The reversal of 163897349 is 943798361.

It is not a de Polignac number, because 163897349 - 2²⁴ = 147120133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 163897297 and 163897306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163807349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110684 + ... + 112154.

It is an arithmetic number, because the mean of its divisors is an integer number (12788736).

Almost surely, 2^163897349 is an apocalyptic number.

It is an amenable number.

163897349 is a deficient number, since it is larger than the sum of its proper divisors (40722427).

163897349 is a wasteful number, since it uses less digits than its factorization.

163897349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936.

The product of its digits is 979776, while the sum is 50.

The square root of 163897349 is about 12802.2399993126. The cubic root of 163897349 is about 547.2561401571.

The spelling of 163897349 in words is "one hundred sixty-three million, eight hundred ninety-seven thousand, three hundred forty-nine".