28066608 has 40 divisors (see below), whose sum is σ = 80562800. Its totient is φ = 9355392.

The previous prime is 28066603. The next prime is 28066613. The reversal of 28066608 is 80666082.

It is an interprime number because it is at equal distance from previous prime (28066603) and next prime (28066613).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28066603) 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, 32053 + ... + 32916.

It is an arithmetic number, because the mean of its divisors is an integer number (2014070).

Almost surely, 2^28066608 is an apocalyptic number.

It is an amenable number.

28066608 is an abundant number, since it is smaller than the sum of its proper divisors (52496192).

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

28066608 is a wasteful number, since it uses less digits than its factorization.

28066608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64986 (or 64974 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 28066608 is about 5297.7927479281. The cubic root of 28066608 is about 303.8994935524.

The spelling of 28066608 in words is "twenty-eight million, sixty-six thousand, six hundred eight".