28566406 has 12 divisors (see below), whose sum is σ = 47099556. Its totient is φ = 12984620.

The previous prime is 28566401. The next prime is 28566449. The reversal of 28566406 is 60466582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28566401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58780 + ... + 59263.

It is an arithmetic number, because the mean of its divisors is an integer number (3924963).

Almost surely, 2^28566406 is an apocalyptic number.

28566406 is a deficient number, since it is larger than the sum of its proper divisors (18533150).

28566406 is a wasteful number, since it uses less digits than its factorization.

28566406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118067 (or 118056 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 28566406 is about 5344.7549990622. The cubic root of 28566406 is about 305.6927940546.

The spelling of 28566406 in words is "twenty-eight million, five hundred sixty-six thousand, four hundred six".