66028924 has 24 divisors (see below), whose sum is σ = 124679520. Its totient is φ = 30416064.

The previous prime is 66028913. The next prime is 66028927. The reversal of 66028924 is 42982066.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66028927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37782 + ... + 39490.

It is an arithmetic number, because the mean of its divisors is an integer number (5194980).

Almost surely, 2^66028924 is an apocalyptic number.

It is an amenable number.

66028924 is a deficient number, since it is larger than the sum of its proper divisors (58650596).

66028924 is a wasteful number, since it uses less digits than its factorization.

66028924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469 (or 2467 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 66028924 is about 8125.8183587870. The cubic root of 66028924 is about 404.1830282013.

It can be divided in two parts, 660 and 28924, that added together give a square (29584 = 172²).

The spelling of 66028924 in words is "sixty-six million, twenty-eight thousand, nine hundred twenty-four".