28899536 has 10 divisors (see below), whose sum is σ = 55992882. Its totient is φ = 14449760.

The previous prime is 28899529. The next prime is 28899539. The reversal of 28899536 is 63599882.

It can be written as a sum of positive squares in only one way, i.e., 15649936 + 13249600 = 3956^2 + 3640^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28899539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903095 + ... + 903126.

Almost surely, 2^28899536 is an apocalyptic number.

It is an amenable number.

28899536 is a deficient number, since it is larger than the sum of its proper divisors (27093346).

28899536 is a wasteful number, since it uses less digits than its factorization.

28899536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806229 (or 1806223 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The square root of 28899536 is about 5375.8288663238. The cubic root of 28899536 is about 306.8764936608.

The spelling of 28899536 in words is "twenty-eight million, eight hundred ninety-nine thousand, five hundred thirty-six".