28719356 has 12 divisors (see below), whose sum is σ = 51427992. Its totient is φ = 14025648.

The previous prime is 28719343. The next prime is 28719373. The reversal of 28719356 is 65391782.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 83315 + ... + 83658.

It is an arithmetic number, because the mean of its divisors is an integer number (4285666).

Almost surely, 2^28719356 is an apocalyptic number.

It is an amenable number.

28719356 is a deficient number, since it is larger than the sum of its proper divisors (22708636).

28719356 is a wasteful number, since it uses less digits than its factorization.

28719356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167020 (or 167018 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 28719356 is about 5359.0443177865. The cubic root of 28719356 is about 306.2374024528.

The spelling of 28719356 in words is "twenty-eight million, seven hundred nineteen thousand, three hundred fifty-six".