28436533 has 8 divisors (see below), whose sum is σ = 29808000. Its totient is φ = 27076368.

The previous prime is 28436519. The next prime is 28436537. The reversal of 28436533 is 33563482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28436533 - 2¹⁷ = 28305461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28436537) 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 7 ways as a sum of consecutive naturals, for example, 2568 + ... + 7966.

It is an arithmetic number, because the mean of its divisors is an integer number (3726000).

Almost surely, 2^28436533 is an apocalyptic number.

28436533 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28436533 is a deficient number, since it is larger than the sum of its proper divisors (1371467).

28436533 is a wasteful number, since it uses less digits than its factorization.

28436533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5651.

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

The square root of 28436533 is about 5332.5915838361. The cubic root of 28436533 is about 305.2288276510.

The spelling of 28436533 in words is "twenty-eight million, four hundred thirty-six thousand, five hundred thirty-three".