28383764 has 12 divisors (see below), whose sum is σ = 49959924. Its totient is φ = 14109504.

The previous prime is 28383763. The next prime is 28383799. The reversal of 28383764 is 46738382.

It can be written as a sum of positive squares in 2 ways, for example, as 23931664 + 4452100 = 4892^2 + 2110^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28383763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19817 + ... + 21200.

It is an arithmetic number, because the mean of its divisors is an integer number (4163327).

Almost surely, 2^28383764 is an apocalyptic number.

It is an amenable number.

28383764 is a deficient number, since it is larger than the sum of its proper divisors (21576160).

28383764 is a wasteful number, since it uses less digits than its factorization.

28383764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41194 (or 41192 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 28383764 is about 5327.6415044558. The cubic root of 28383764 is about 305.0399087794.

The spelling of 28383764 in words is "twenty-eight million, three hundred eighty-three thousand, seven hundred sixty-four".