28576946 has 8 divisors (see below), whose sum is σ = 43025580. Its totient is φ = 14235088.

The previous prime is 28576943. The next prime is 28576957. The reversal of 28576946 is 64967582.

It can be written as a sum of positive squares in 2 ways, for example, as 28569025 + 7921 = 5345^2 + 89^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28576946.

It is not an unprimeable number, because it can be changed into a prime (28576943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26021 + ... + 27096.

Almost surely, 2^28576946 is an apocalyptic number.

28576946 is a deficient number, since it is larger than the sum of its proper divisors (14448634).

28576946 is a wasteful number, since it uses less digits than its factorization.

28576946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53388.

The product of its digits is 725760, while the sum is 47.

The square root of 28576946 is about 5345.7409215187. The cubic root of 28576946 is about 305.7303860646.

The spelling of 28576946 in words is "twenty-eight million, five hundred seventy-six thousand, nine hundred forty-six".