28866466 has 4 divisors (see below), whose sum is σ = 43299702. Its totient is φ = 14433232.

The previous prime is 28866443. The next prime is 28866473. The reversal of 28866466 is 66466882.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24950025 + 3916441 = 4995^2 + 1979^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7216615 + ... + 7216618.

Almost surely, 2^28866466 is an apocalyptic number.

28866466 is a deficient number, since it is larger than the sum of its proper divisors (14433236).

28866466 is a wasteful number, since it uses less digits than its factorization.

28866466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14433235.

The product of its digits is 663552, while the sum is 46.

The square root of 28866466 is about 5372.7521811452. The cubic root of 28866466 is about 306.7593951363.

The spelling of 28866466 in words is "twenty-eight million, eight hundred sixty-six thousand, four hundred sixty-six".