28070163 has 24 divisors (see below), whose sum is σ = 46562880. Its totient is φ = 16115760.

The previous prime is 28070149. The next prime is 28070167. The reversal of 28070163 is 36107082.

It is not a de Polignac number, because 28070163 - 2⁵ = 28070131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28070167) 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 in 23 ways as a sum of consecutive naturals, for example, 5581 + ... + 9342.

It is an arithmetic number, because the mean of its divisors is an integer number (1940120).

Almost surely, 2^28070163 is an apocalyptic number.

28070163 is a deficient number, since it is larger than the sum of its proper divisors (18492717).

28070163 is a wasteful number, since it uses less digits than its factorization.

28070163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14959 (or 14956 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 28070163 is about 5298.1282543932. The cubic root of 28070163 is about 303.9123239484.

The spelling of 28070163 in words is "twenty-eight million, seventy thousand, one hundred sixty-three".