28923333 has 12 divisors (see below), whose sum is σ = 39222144. Its totient is φ = 18958800.

The previous prime is 28923331. The next prime is 28923347. The reversal of 28923333 is 33332982.

It is not a de Polignac number, because 28923333 - 2¹ = 28923331 is a prime.

28923333 is a modest number, since divided by 3333 gives 2892 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 28923294 and 28923303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28923331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9868 + ... + 12458.

It is an arithmetic number, because the mean of its divisors is an integer number (3268512).

Almost surely, 2^28923333 is an apocalyptic number.

It is an amenable number.

28923333 is a deficient number, since it is larger than the sum of its proper divisors (10298811).

28923333 is an equidigital number, since it uses as much as digits as its factorization.

28923333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716 (or 2655 counting only the distinct ones).

The product of its digits is 23328, while the sum is 33.

The square root of 28923333 is about 5378.0417439808. The cubic root of 28923333 is about 306.9607018915.

The spelling of 28923333 in words is "twenty-eight million, nine hundred twenty-three thousand, three hundred thirty-three".