28811498 has 16 divisors (see below), whose sum is σ = 45868680. Its totient is φ = 13526016.

The previous prime is 28811491. The next prime is 28811509. The reversal of 28811498 is 89411882.

It can be written as a sum of positive squares in 4 ways, for example, as 23396569 + 5414929 = 4837^2 + 2327^2 .

It is not an unprimeable number, because it can be changed into a prime (28811491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19448 + ... + 20876.

Almost surely, 2^28811498 is an apocalyptic number.

28811498 is a deficient number, since it is larger than the sum of its proper divisors (17057182).

28811498 is a wasteful number, since it uses less digits than its factorization.

28811498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041.

The product of its digits is 36864, while the sum is 41.

The square root of 28811498 is about 5367.6343019993. The cubic root of 28811498 is about 306.5645593165.

The spelling of 28811498 in words is "twenty-eight million, eight hundred eleven thousand, four hundred ninety-eight".