28682623 has 2 divisors, whose sum is σ = 28682624. Its totient is φ = 28682622.

The previous prime is 28682617. The next prime is 28682671. The reversal of 28682623 is 32628682.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28682623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28682683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14341311 + 14341312.

It is an arithmetic number, because the mean of its divisors is an integer number (14341312).

Almost surely, 2^28682623 is an apocalyptic number.

28682623 is a deficient number, since it is larger than the sum of its proper divisors (1).

28682623 is an equidigital number, since it uses as much as digits as its factorization.

28682623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 37.

The square root of 28682623 is about 5355.6160243244. The cubic root of 28682623 is about 306.1067841819.

The spelling of 28682623 in words is "twenty-eight million, six hundred eighty-two thousand, six hundred twenty-three".