28066662 has 40 divisors (see below), whose sum is σ = 67732896. Its totient is φ = 8635248.

The previous prime is 28066651. The next prime is 28066669. The reversal of 28066662 is 26666082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28066669) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4558 + ... + 8769.

Almost surely, 2^28066662 is an apocalyptic number.

28066662 is an abundant number, since it is smaller than the sum of its proper divisors (39666234).

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

28066662 is a wasteful number, since it uses less digits than its factorization.

28066662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13354 (or 13345 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 28066662 is about 5297.7978443878. The cubic root of 28066662 is about 303.8996884526.

The spelling of 28066662 in words is "twenty-eight million, sixty-six thousand, six hundred sixty-two".