28459429 has 2 divisors, whose sum is σ = 28459430. Its totient is φ = 28459428.

The previous prime is 28459391. The next prime is 28459451. The reversal of 28459429 is 92495482.

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., 28068804 + 390625 = 5298^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 28459429 - 2⁹ = 28458917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28459229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14229714 + 14229715.

It is an arithmetic number, because the mean of its divisors is an integer number (14229715).

Almost surely, 2^28459429 is an apocalyptic number.

It is an amenable number.

28459429 is a deficient number, since it is larger than the sum of its proper divisors (1).

28459429 is an equidigital number, since it uses as much as digits as its factorization.

28459429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 28459429 is about 5334.7379504527. The cubic root of 28459429 is about 305.3107251693.

The spelling of 28459429 in words is "twenty-eight million, four hundred fifty-nine thousand, four hundred twenty-nine".