163489772 has 12 divisors (see below), whose sum is σ = 288196440. Its totient is φ = 81147936.

The previous prime is 163489771. The next prime is 163489787. The reversal of 163489772 is 277984361.

163489772 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×163489772² = 53457811097223968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (163489771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148622 + ... + 149717.

It is an arithmetic number, because the mean of its divisors is an integer number (24016370).

Almost surely, 2^163489772 is an apocalyptic number.

It is an amenable number.

163489772 is a deficient number, since it is larger than the sum of its proper divisors (124706668).

163489772 is a wasteful number, since it uses less digits than its factorization.

163489772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298480 (or 298478 counting only the distinct ones).

The product of its digits is 508032, while the sum is 47.

The square root of 163489772 is about 12786.3118998404. The cubic root of 163489772 is about 546.8021280077.

The spelling of 163489772 in words is "one hundred sixty-three million, four hundred eighty-nine thousand, seven hundred seventy-two".