163628772 has 12 divisors (see below), whose sum is σ = 381800496. Its totient is φ = 54542920.

The previous prime is 163628767. The next prime is 163628783. The reversal of 163628772 is 277826361.

163628772 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

163628772 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6817854 + ... + 6817877.

It is an arithmetic number, because the mean of its divisors is an integer number (31816708).

Almost surely, 2^163628772 is an apocalyptic number.

163628772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163628772 is an abundant number, since it is smaller than the sum of its proper divisors (218171724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163628772 is a wasteful number, since it uses less digits than its factorization.

163628772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13635738 (or 13635736 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 163628772 is about 12791.7462451379. The cubic root of 163628772 is about 546.9570489444.

The spelling of 163628772 in words is "one hundred sixty-three million, six hundred twenty-eight thousand, seven hundred seventy-two".