28567066 has 16 divisors (see below), whose sum is σ = 46889280. Its totient is φ = 12945280.

The previous prime is 28567057. The next prime is 28567069. The reversal of 28567066 is 66076582.

It is not an unprimeable number, because it can be changed into a prime (28567069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6090 + ... + 9706.

It is an arithmetic number, because the mean of its divisors is an integer number (2930580).

Almost surely, 2^28567066 is an apocalyptic number.

28567066 is a deficient number, since it is larger than the sum of its proper divisors (18322214).

28567066 is a wasteful number, since it uses less digits than its factorization.

28567066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3989.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 28567066 is about 5344.8167414795. The cubic root of 28567066 is about 305.6951482848.

The spelling of 28567066 in words is "twenty-eight million, five hundred sixty-seven thousand, sixty-six".