28141469 has 2 divisors, whose sum is σ = 28141470. Its totient is φ = 28141468.

The previous prime is 28141447. The next prime is 28141483. The reversal of 28141469 is 96414182.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27825625 + 315844 = 5275^2 + 562^2 .

It is a cyclic number.

It is not a de Polignac number, because 28141469 - 2²⁰ = 27092893 is a prime.

It is a super-2 number, since 2×28141469² = 1583884554955922, 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 (28141439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14070734 + 14070735.

It is an arithmetic number, because the mean of its divisors is an integer number (14070735).

Almost surely, 2^28141469 is an apocalyptic number.

It is an amenable number.

28141469 is a deficient number, since it is larger than the sum of its proper divisors (1).

28141469 is an equidigital number, since it uses as much as digits as its factorization.

28141469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 35.

The square root of 28141469 is about 5304.8533438729. The cubic root of 28141469 is about 304.1694468835.

The spelling of 28141469 in words is "twenty-eight million, one hundred forty-one thousand, four hundred sixty-nine".