28569068 has 36 divisors (see below), whose sum is σ = 55837656. Its totient is φ = 12777600.

The previous prime is 28569053. The next prime is 28569077. The reversal of 28569068 is 86096582.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 31988 + ... + 32868.

It is an arithmetic number, because the mean of its divisors is an integer number (1551046).

Almost surely, 2^28569068 is an apocalyptic number.

It is an amenable number.

28569068 is a deficient number, since it is larger than the sum of its proper divisors (27268588).

28569068 is a wasteful number, since it uses less digits than its factorization.

28569068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 28569068 is about 5345.0040224494. The cubic root of 28569068 is about 305.7022892281.

The spelling of 28569068 in words is "twenty-eight million, five hundred sixty-nine thousand, sixty-eight".