28683512247 has 8 divisors (see below), whose sum is σ = 41186581744. Its totient is φ = 17651392128.

The previous prime is 28683512239. The next prime is 28683512251. The reversal of 28683512247 is 74221538682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28683512247 - 2³ = 28683512239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28683512196 and 28683512205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28683512227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367737298 + ... + 367737375.

It is an arithmetic number, because the mean of its divisors is an integer number (5148322718).

Almost surely, 2^28683512247 is an apocalyptic number.

28683512247 is a deficient number, since it is larger than the sum of its proper divisors (12503069497).

28683512247 is a wasteful number, since it uses less digits than its factorization.

28683512247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735474689.

The product of its digits is 1290240, while the sum is 48.

The spelling of 28683512247 in words is "twenty-eight billion, six hundred eighty-three million, five hundred twelve thousand, two hundred forty-seven".