28433563 has 2 divisors, whose sum is σ = 28433564. Its totient is φ = 28433562.

The previous prime is 28433551. The next prime is 28433567. The reversal of 28433563 is 36533482.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28433563 is a prime.

It is not a weakly prime, because it can be changed into another prime (28433567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14216781 + 14216782.

It is an arithmetic number, because the mean of its divisors is an integer number (14216782).

Almost surely, 2^28433563 is an apocalyptic number.

28433563 is a deficient number, since it is larger than the sum of its proper divisors (1).

28433563 is an equidigital number, since it uses as much as digits as its factorization.

28433563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 34.

The square root of 28433563 is about 5332.3131003346. The cubic root of 28433563 is about 305.2182009315.

It can be divided in two parts, 284335 and 63, that multiplied together give a triangular number (17913105 = T₅₉₈₅).

The spelling of 28433563 in words is "twenty-eight million, four hundred thirty-three thousand, five hundred sixty-three".