28913959 has 2 divisors, whose sum is σ = 28913960. Its totient is φ = 28913958.

The previous prime is 28913947. The next prime is 28913971. The reversal of 28913959 is 95931982.

It is a balanced prime because it is at equal distance from previous prime (28913947) and next prime (28913971).

It is a cyclic number.

It is not a de Polignac number, because 28913959 - 2⁷ = 28913831 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28913999) 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, 14456979 + 14456980.

It is an arithmetic number, because the mean of its divisors is an integer number (14456980).

Almost surely, 2^28913959 is an apocalyptic number.

28913959 is a deficient number, since it is larger than the sum of its proper divisors (1).

28913959 is an equidigital number, since it uses as much as digits as its factorization.

28913959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 46.

The square root of 28913959 is about 5377.1701665467. The cubic root of 28913959 is about 306.9275365052.

The spelling of 28913959 in words is "twenty-eight million, nine hundred thirteen thousand, nine hundred fifty-nine".