28798653 has 16 divisors (see below), whose sum is σ = 42779520. Its totient is φ = 17110464.

The previous prime is 28798619. The next prime is 28798657. The reversal of 28798653 is 35689782.

It is not a de Polignac number, because 28798653 - 2¹⁷ = 28667581 is a prime.

It is a super-2 number, since 2×28798653² = 1658724829228818, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28798657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11601 + ... + 13862.

It is an arithmetic number, because the mean of its divisors is an integer number (2673720).

Almost surely, 2^28798653 is an apocalyptic number.

It is an amenable number.

28798653 is a deficient number, since it is larger than the sum of its proper divisors (13980867).

28798653 is a wasteful number, since it uses less digits than its factorization.

28798653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25508.

The product of its digits is 725760, while the sum is 48.

The square root of 28798653 is about 5366.4376452168. The cubic root of 28798653 is about 306.5189940922.

The spelling of 28798653 in words is "twenty-eight million, seven hundred ninety-eight thousand, six hundred fifty-three".