28298153 has 4 divisors (see below), whose sum is σ = 30474948. Its totient is φ = 26121360.

The previous prime is 28298147. The next prime is 28298161. The reversal of 28298153 is 35189282.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18983449 + 9314704 = 4357^2 + 3052^2 .

It is a cyclic number.

It is not a de Polignac number, because 28298153 - 2¹⁴ = 28281769 is a prime.

It is a super-2 number, since 2×28298153² = 1601570926422818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28298143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1088378 + ... + 1088403.

It is an arithmetic number, because the mean of its divisors is an integer number (7618737).

Almost surely, 2^28298153 is an apocalyptic number.

It is an amenable number.

28298153 is a deficient number, since it is larger than the sum of its proper divisors (2176795).

28298153 is a wasteful number, since it uses less digits than its factorization.

28298153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176794.

The product of its digits is 34560, while the sum is 38.

The square root of 28298153 is about 5319.6008308895. The cubic root of 28298153 is about 304.7329131853.

The spelling of 28298153 in words is "twenty-eight million, two hundred ninety-eight thousand, one hundred fifty-three".