28773824 has 14 divisors (see below), whose sum is σ = 57098184. Its totient is φ = 14386880.

The previous prime is 28773821. The next prime is 28773853. The reversal of 28773824 is 42837782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28773821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224732 + ... + 224859.

Almost surely, 2^28773824 is an apocalyptic number.

It is an amenable number.

28773824 is a deficient number, since it is larger than the sum of its proper divisors (28324360).

28773824 is an equidigital number, since it uses as much as digits as its factorization.

28773824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449603 (or 449593 counting only the distinct ones).

The product of its digits is 150528, while the sum is 41.

The square root of 28773824 is about 5364.1237867894. The cubic root of 28773824 is about 306.4308794580.

The spelling of 28773824 in words is "twenty-eight million, seven hundred seventy-three thousand, eight hundred twenty-four".