28743796 has 24 divisors (see below), whose sum is σ = 51226560. Its totient is φ = 14110272.

The previous prime is 28743791. The next prime is 28743809. The reversal of 28743796 is 69734782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28743791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93475 + ... + 93781.

It is an arithmetic number, because the mean of its divisors is an integer number (2134440).

Almost surely, 2^28743796 is an apocalyptic number.

It is an amenable number.

28743796 is a deficient number, since it is larger than the sum of its proper divisors (22482764).

28743796 is a wasteful number, since it uses less digits than its factorization.

28743796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 661 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The square root of 28743796 is about 5361.3240901852. The cubic root of 28743796 is about 306.3242465548.

It can be divided in two parts, 2874 and 3796, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 28743796 in words is "twenty-eight million, seven hundred forty-three thousand, seven hundred ninety-six".