28289053 has 16 divisors (see below), whose sum is σ = 31647616. Its totient is φ = 25116480.

The previous prime is 28289047. The next prime is 28289059. The reversal of 28289053 is 35098282.

It is an interprime number because it is at equal distance from previous prime (28289047) and next prime (28289059).

It is a cyclic number.

It is not a de Polignac number, because 28289053 - 2⁵ = 28289021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28289059) 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, 49258 + ... + 49828.

It is an arithmetic number, because the mean of its divisors is an integer number (1977976).

Almost surely, 2^28289053 is an apocalyptic number.

It is an amenable number.

28289053 is a deficient number, since it is larger than the sum of its proper divisors (3358563).

28289053 is a wasteful number, since it uses less digits than its factorization.

28289053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 28289053 is about 5318.7454347806. The cubic root of 28289053 is about 304.7002447774.

It can be divided in two parts, 2828 and 9053, that added together give a square (11881 = 109²).

The spelling of 28289053 in words is "twenty-eight million, two hundred eighty-nine thousand, fifty-three".