28682473 has 2 divisors, whose sum is σ = 28682474. Its totient is φ = 28682472.

The previous prime is 28682461. The next prime is 28682531. The reversal of 28682473 is 37428682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26347689 + 2334784 = 5133^2 + 1528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28682473 is a prime.

It is not a weakly prime, because it can be changed into another prime (28682413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14341236 + 14341237.

It is an arithmetic number, because the mean of its divisors is an integer number (14341237).

Almost surely, 2^28682473 is an apocalyptic number.

It is an amenable number.

28682473 is a deficient number, since it is larger than the sum of its proper divisors (1).

28682473 is an equidigital number, since it uses as much as digits as its factorization.

28682473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 40.

The square root of 28682473 is about 5355.6020203148. The cubic root of 28682473 is about 306.1062505708.

The spelling of 28682473 in words is "twenty-eight million, six hundred eighty-two thousand, four hundred seventy-three".