28461529 has 2 divisors, whose sum is σ = 28461530. Its totient is φ = 28461528.

The previous prime is 28461527. The next prime is 28461539. The reversal of 28461529 is 92516482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24651225 + 3810304 = 4965^2 + 1952^2 .

It is a cyclic number.

It is not a de Polignac number, because 28461529 - 2¹ = 28461527 is a prime.

Together with 28461527, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28461527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14230764 + 14230765.

It is an arithmetic number, because the mean of its divisors is an integer number (14230765).

Almost surely, 2^28461529 is an apocalyptic number.

It is an amenable number.

28461529 is a deficient number, since it is larger than the sum of its proper divisors (1).

28461529 is an equidigital number, since it uses as much as digits as its factorization.

28461529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 37.

The square root of 28461529 is about 5334.9347699855. The cubic root of 28461529 is about 305.3182345347.

It can be divided in two parts, 2846 and 1529, that multiplied together give a palindrome (4351534).

The spelling of 28461529 in words is "twenty-eight million, four hundred sixty-one thousand, five hundred twenty-nine".