28934433 has 12 divisors (see below), whose sum is σ = 45593808. Its totient is φ = 17535960.

The previous prime is 28934413. The next prime is 28934453. The reversal of 28934433 is 33443982.

It is a happy number.

28934433 is a `hidden beast` number, since 289 + 344 + 33 = 666.

It is an interprime number because it is at equal distance from previous prime (28934413) and next prime (28934453).

It is not a de Polignac number, because 28934433 - 2¹⁴ = 28918049 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28934413) 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, 146035 + ... + 146232.

It is an arithmetic number, because the mean of its divisors is an integer number (3799484).

Almost surely, 2^28934433 is an apocalyptic number.

It is an amenable number.

28934433 is a deficient number, since it is larger than the sum of its proper divisors (16659375).

28934433 is a wasteful number, since it uses less digits than its factorization.

28934433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292284 (or 292281 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 28934433 is about 5379.0736191281. The cubic root of 28934433 is about 306.9999646327. Note that the first 4 decimals are identical.

The spelling of 28934433 in words is "twenty-eight million, nine hundred thirty-four thousand, four hundred thirty-three".