28360566 has 36 divisors (see below), whose sum is σ = 66545388. Its totient is φ = 8725392.

The previous prime is 28360543. The next prime is 28360571. The reversal of 28360566 is 66506382.

It is a self number, because there is not a number n which added to its sum of digits gives 28360566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1620 + ... + 7703.

It is an arithmetic number, because the mean of its divisors is an integer number (1848483).

Almost surely, 2^28360566 is an apocalyptic number.

28360566 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28360566 is an abundant number, since it is smaller than the sum of its proper divisors (38184822).

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

28360566 is a wasteful number, since it uses less digits than its factorization.

28360566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9357 (or 9341 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 28360566 is about 5325.4639234531. The cubic root of 28360566 is about 304.9567832703.

The spelling of 28360566 in words is "twenty-eight million, three hundred sixty thousand, five hundred sixty-six".