28297463 has 2 divisors, whose sum is σ = 28297464. Its totient is φ = 28297462.

The previous prime is 28297433. The next prime is 28297559. The reversal of 28297463 is 36479282.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28297463 - 2¹⁰ = 28296439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28297463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28297433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14148731 + 14148732.

It is an arithmetic number, because the mean of its divisors is an integer number (14148732).

Almost surely, 2^28297463 is an apocalyptic number.

28297463 is a deficient number, since it is larger than the sum of its proper divisors (1).

28297463 is an equidigital number, since it uses as much as digits as its factorization.

28297463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 28297463 is about 5319.5359760039. The cubic root of 28297463 is about 304.7304363756.

The spelling of 28297463 in words is "twenty-eight million, two hundred ninety-seven thousand, four hundred sixty-three".