28610039 has 2 divisors, whose sum is σ = 28610040. Its totient is φ = 28610038.

The previous prime is 28610027. The next prime is 28610041. The reversal of 28610039 is 93001682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28610039 - 2¹² = 28605943 is a prime.

Together with 28610041, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28609993 and 28610020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28610059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14305019 + 14305020.

It is an arithmetic number, because the mean of its divisors is an integer number (14305020).

Almost surely, 2^28610039 is an apocalyptic number.

28610039 is a deficient number, since it is larger than the sum of its proper divisors (1).

28610039 is an equidigital number, since it uses as much as digits as its factorization.

28610039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 28610039 is about 5348.8352937813. The cubic root of 28610039 is about 305.8483556650.

The spelling of 28610039 in words is "twenty-eight million, six hundred ten thousand, thirty-nine".