28428683 has 2 divisors, whose sum is σ = 28428684. Its totient is φ = 28428682.

The previous prime is 28428679. The next prime is 28428689. The reversal of 28428683 is 38682482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28428683 - 2² = 28428679 is a prime.

It is a super-3 number, since 3×28428683³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 28428683.

It is not a weakly prime, because it can be changed into another prime (28428689) 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 as a sum of consecutive naturals, namely, 14214341 + 14214342.

It is an arithmetic number, because the mean of its divisors is an integer number (14214342).

Almost surely, 2^28428683 is an apocalyptic number.

28428683 is a deficient number, since it is larger than the sum of its proper divisors (1).

28428683 is an equidigital number, since it uses as much as digits as its factorization.

28428683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 41.

The square root of 28428683 is about 5331.8554931656. The cubic root of 28428683 is about 305.2007385867.

The spelling of 28428683 in words is "twenty-eight million, four hundred twenty-eight thousand, six hundred eighty-three".