28804562 has 8 divisors (see below), whose sum is σ = 45748476. Its totient is φ = 13555072.

The previous prime is 28804547. The next prime is 28804571. The reversal of 28804562 is 26540882.

It can be written as a sum of positive squares in 2 ways, for example, as 26429881 + 2374681 = 5141^2 + 1541^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423563 + ... + 423630.

Almost surely, 2^28804562 is an apocalyptic number.

28804562 is a deficient number, since it is larger than the sum of its proper divisors (16943914).

28804562 is a wasteful number, since it uses less digits than its factorization.

28804562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847212.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 28804562 is about 5366.9881684237. The cubic root of 28804562 is about 306.5399568420.

The spelling of 28804562 in words is "twenty-eight million, eight hundred four thousand, five hundred sixty-two".