163969347 has 6 divisors (see below), whose sum is σ = 218655372. Its totient is φ = 109298112.

The previous prime is 163969343. The next prime is 163969349. The reversal of 163969347 is 743969361.

It is not a de Polignac number, because 163969347 - 2² = 163969343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163969296 and 163969305.

It is not an unprimeable number, because it can be changed into a prime (163969343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18483 + ... + 25875.

It is an arithmetic number, because the mean of its divisors is an integer number (36442562).

Almost surely, 2^163969347 is an apocalyptic number.

163969347 is a deficient number, since it is larger than the sum of its proper divisors (54686025).

163969347 is an frugal number, since it uses more digits than its factorization.

163969347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14789 (or 7396 counting only the distinct ones).

The product of its digits is 734832, while the sum is 48.

The square root of 163969347 is about 12805.0516203567. The cubic root of 163969347 is about 547.3362626235.

Multiplying 163969347 by its sum of digits (48), we get a square (7870528656 = 88716²).

The spelling of 163969347 in words is "one hundred sixty-three million, nine hundred sixty-nine thousand, three hundred forty-seven".