163671707 has 2 divisors, whose sum is σ = 163671708. Its totient is φ = 163671706.

The previous prime is 163671701. The next prime is 163671709. The reversal of 163671707 is 707176361.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (707176361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163671707 - 2⁸ = 163671451 is a prime.

Together with 163671709, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163671701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81835853 + 81835854.

It is an arithmetic number, because the mean of its divisors is an integer number (81835854).

Almost surely, 2^163671707 is an apocalyptic number.

163671707 is a deficient number, since it is larger than the sum of its proper divisors (1).

163671707 is an equidigital number, since it uses as much as digits as its factorization.

163671707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 163671707 is about 12793.4243656654. The cubic root of 163671707 is about 547.0048839450.

The spelling of 163671707 in words is "one hundred sixty-three million, six hundred seventy-one thousand, seven hundred seven".