66028892 has 12 divisors (see below), whose sum is σ = 116382840. Its totient is φ = 32776656.

The previous prime is 66028877. The next prime is 66028909. The reversal of 66028892 is 29882066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58823 + ... + 59934.

It is an arithmetic number, because the mean of its divisors is an integer number (9698570).

Almost surely, 2^66028892 is an apocalyptic number.

It is an amenable number.

66028892 is a deficient number, since it is larger than the sum of its proper divisors (50353948).

66028892 is a wasteful number, since it uses less digits than its factorization.

66028892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118900 (or 118898 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 66028892 is about 8125.8163897543. The cubic root of 66028892 is about 404.1829629074.

The spelling of 66028892 in words is "sixty-six million, twenty-eight thousand, eight hundred ninety-two".