163989692 has 12 divisors (see below), whose sum is σ = 287378616. Its totient is φ = 81881520.

The previous prime is 163989691. The next prime is 163989697. The reversal of 163989692 is 296989361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163989691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25034 + ... + 30897.

It is an arithmetic number, because the mean of its divisors is an integer number (23948218).

Almost surely, 2^163989692 is an apocalyptic number.

It is an amenable number.

163989692 is a deficient number, since it is larger than the sum of its proper divisors (123388924).

163989692 is a wasteful number, since it uses less digits than its factorization.

163989692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56668 (or 56666 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 53.

The square root of 163989692 is about 12805.8460087571. The cubic root of 163989692 is about 547.3588991628.

The spelling of 163989692 in words is "one hundred sixty-three million, nine hundred eighty-nine thousand, six hundred ninety-two".