28073166 has 32 divisors (see below), whose sum is σ = 63230976. Its totient is φ = 8232000.

The previous prime is 28073153. The next prime is 28073183. The reversal of 28073166 is 66137082.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4815 + ... + 8906.

It is an arithmetic number, because the mean of its divisors is an integer number (1975968).

Almost surely, 2^28073166 is an apocalyptic number.

28073166 is an abundant number, since it is smaller than the sum of its proper divisors (35157810).

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

28073166 is a wasteful number, since it uses less digits than its factorization.

28073166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13768.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 28073166 is about 5298.4116487868. The cubic root of 28073166 is about 303.9231612702.

The spelling of 28073166 in words is "twenty-eight million, seventy-three thousand, one hundred sixty-six".