28536933 has 12 divisors (see below), whose sum is σ = 38642240. Its totient is φ = 18729672.

The previous prime is 28536929. The next prime is 28536971. The reversal of 28536933 is 33963582.

It is not a de Polignac number, because 28536933 - 2² = 28536929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28536891 and 28536900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28536913) 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 11 ways as a sum of consecutive naturals, for example, 82066 + ... + 82412.

Almost surely, 2^28536933 is an apocalyptic number.

It is an amenable number.

28536933 is a deficient number, since it is larger than the sum of its proper divisors (10105307).

28536933 is an frugal number, since it uses more digits than its factorization.

28536933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776 (or 429 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The square root of 28536933 is about 5341.9970984642. The cubic root of 28536933 is about 305.5876264201.

The spelling of 28536933 in words is "twenty-eight million, five hundred thirty-six thousand, nine hundred thirty-three".