28598459 has 4 divisors (see below), whose sum is σ = 28919880. Its totient is φ = 28277040.

The previous prime is 28598441. The next prime is 28598491. The reversal of 28598459 is 95489582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28598459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28598159) 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 in 3 ways as a sum of consecutive naturals, for example, 160577 + ... + 160754.

It is an arithmetic number, because the mean of its divisors is an integer number (7229970).

Almost surely, 2^28598459 is an apocalyptic number.

28598459 is a deficient number, since it is larger than the sum of its proper divisors (321421).

28598459 is an equidigital number, since it uses as much as digits as its factorization.

28598459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321420.

The product of its digits is 1036800, while the sum is 50.

The square root of 28598459 is about 5347.7527055764. The cubic root of 28598459 is about 305.8070857468.

The spelling of 28598459 in words is "twenty-eight million, five hundred ninety-eight thousand, four hundred fifty-nine".