28532799 has 6 divisors (see below), whose sum is σ = 41214056. Its totient is φ = 19021860.

The previous prime is 28532797. The next prime is 28532831. The reversal of 28532799 is 99723582.

28532799 is a `hidden beast` number, since 28 + 532 + 7 + 99 = 666.

It is not a de Polignac number, because 28532799 - 2¹ = 28532797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28532797) 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, 1585147 + ... + 1585164.

Almost surely, 2^28532799 is an apocalyptic number.

28532799 is a deficient number, since it is larger than the sum of its proper divisors (12681257).

28532799 is a wasteful number, since it uses less digits than its factorization.

28532799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170317 (or 3170314 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 28532799 is about 5341.6101505071. The cubic root of 28532799 is about 305.5728694003.

The spelling of 28532799 in words is "twenty-eight million, five hundred thirty-two thousand, seven hundred ninety-nine".