28536269 has 2 divisors, whose sum is σ = 28536270. Its totient is φ = 28536268.

The previous prime is 28536241. The next prime is 28536281. The reversal of 28536269 is 96263582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28494244 + 42025 = 5338^2 + 205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28536269 is a prime.

It is a super-2 number, since 2×28536269² = 1628637296880722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28536769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14268134 + 14268135.

It is an arithmetic number, because the mean of its divisors is an integer number (14268135).

Almost surely, 2^28536269 is an apocalyptic number.

It is an amenable number.

28536269 is a deficient number, since it is larger than the sum of its proper divisors (1).

28536269 is an equidigital number, since it uses as much as digits as its factorization.

28536269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 41.

The square root of 28536269 is about 5341.9349490611. The cubic root of 28536269 is about 305.5852562547.

The spelling of 28536269 in words is "twenty-eight million, five hundred thirty-six thousand, two hundred sixty-nine".