163928901 has 8 divisors (see below), whose sum is σ = 221205600. Its totient is φ = 107969072.

The previous prime is 163928893. The next prime is 163928911. The reversal of 163928901 is 109829361.

163928901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163928901 - 2³ = 163928893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163928901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163928911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328926 + ... + 329423.

It is an arithmetic number, because the mean of its divisors is an integer number (27650700).

Almost surely, 2^163928901 is an apocalyptic number.

It is an amenable number.

163928901 is a deficient number, since it is larger than the sum of its proper divisors (57276699).

163928901 is an equidigital number, since it uses as much as digits as its factorization.

163928901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658435.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 163928901 is about 12803.4722243616. The cubic root of 163928901 is about 547.2912554654.

The spelling of 163928901 in words is "one hundred sixty-three million, nine hundred twenty-eight thousand, nine hundred one".