28659611 has 2 divisors, whose sum is σ = 28659612. Its totient is φ = 28659610.

The previous prime is 28659607. The next prime is 28659623. The reversal of 28659611 is 11695682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28659611 - 2² = 28659607 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28659661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14329805 + 14329806.

It is an arithmetic number, because the mean of its divisors is an integer number (14329806).

Almost surely, 2^28659611 is an apocalyptic number.

28659611 is a deficient number, since it is larger than the sum of its proper divisors (1).

28659611 is an equidigital number, since it uses as much as digits as its factorization.

28659611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 38.

The square root of 28659611 is about 5353.4671942583. The cubic root of 28659611 is about 306.0248993651.

The spelling of 28659611 in words is "twenty-eight million, six hundred fifty-nine thousand, six hundred eleven".