28433764 has 12 divisors (see below), whose sum is σ = 49831600. Its totient is φ = 14196168.

The previous prime is 28433749. The next prime is 28433791. The reversal of 28433764 is 46733482.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1854 + ... + 7765.

Almost surely, 2^28433764 is an apocalyptic number.

It is an amenable number.

28433764 is a deficient number, since it is larger than the sum of its proper divisors (21397836).

28433764 is a wasteful number, since it uses less digits than its factorization.

28433764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10362 (or 10360 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 28433764 is about 5332.3319476567. The cubic root of 28433764 is about 305.2189201369.

The spelling of 28433764 in words is "twenty-eight million, four hundred thirty-three thousand, seven hundred sixty-four".