8163928 has 8 divisors (see below), whose sum is σ = 15307380. Its totient is φ = 4081960.

The previous prime is 8163923. The next prime is 8163929. The reversal of 8163928 is 8293618.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8163923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510238 + ... + 510253.

Almost surely, 2^8163928 is an apocalyptic number.

It is an amenable number.

8163928 is a deficient number, since it is larger than the sum of its proper divisors (7143452).

8163928 is a wasteful number, since it uses less digits than its factorization.

8163928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020497 (or 1020493 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 8163928 is about 2857.2588262179. The cubic root of 8163928 is about 201.3568407660.

It can be divided in two parts, 81 and 63928, that added together give a square (64009 = 253²).

The spelling of 8163928 in words is "eight million, one hundred sixty-three thousand, nine hundred twenty-eight".