28604269 has 2 divisors, whose sum is σ = 28604270. Its totient is φ = 28604268.

The previous prime is 28604263. The next prime is 28604281. The reversal of 28604269 is 96240682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26399044 + 2205225 = 5138^2 + 1485^2 .

It is a cyclic number.

It is not a de Polignac number, because 28604269 - 2¹³ = 28596077 is a prime.

It is a super-2 number, since 2×28604269² = 1636408410048722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28604263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14302134 + 14302135.

It is an arithmetic number, because the mean of its divisors is an integer number (14302135).

Almost surely, 2^28604269 is an apocalyptic number.

It is an amenable number.

28604269 is a deficient number, since it is larger than the sum of its proper divisors (1).

28604269 is an equidigital number, since it uses as much as digits as its factorization.

28604269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 28604269 is about 5348.2958968255. The cubic root of 28604269 is about 305.8277933761.

The spelling of 28604269 in words is "twenty-eight million, six hundred four thousand, two hundred sixty-nine".