28463533 has 4 divisors (see below), whose sum is σ = 32529760. Its totient is φ = 24397308.

The previous prime is 28463507. The next prime is 28463551. The reversal of 28463533 is 33536482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28463533 - 2¹⁷ = 28332461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28463563) 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 in 3 ways as a sum of consecutive naturals, for example, 2033103 + ... + 2033116.

It is an arithmetic number, because the mean of its divisors is an integer number (8132440).

Almost surely, 2^28463533 is an apocalyptic number.

It is an amenable number.

28463533 is a deficient number, since it is larger than the sum of its proper divisors (4066227).

28463533 is an equidigital number, since it uses as much as digits as its factorization.

28463533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066226.

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

The square root of 28463533 is about 5335.1225852833. The cubic root of 28463533 is about 305.3254002704.

The spelling of 28463533 in words is "twenty-eight million, four hundred sixty-three thousand, five hundred thirty-three".