28123068 has 12 divisors (see below), whose sum is σ = 65620520. Its totient is φ = 9374352.

The previous prime is 28123063. The next prime is 28123087. The reversal of 28123068 is 86032182.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28123063) 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, 1171783 + ... + 1171806.

Almost surely, 2^28123068 is an apocalyptic number.

It is an amenable number.

28123068 is an abundant number, since it is smaller than the sum of its proper divisors (37497452).

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

28123068 is a wasteful number, since it uses less digits than its factorization.

28123068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343596 (or 2343594 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 28123068 is about 5303.1187050640. The cubic root of 28123068 is about 304.1031361737.

The spelling of 28123068 in words is "twenty-eight million, one hundred twenty-three thousand, sixty-eight".