28481459 has 2 divisors, whose sum is σ = 28481460. Its totient is φ = 28481458.

The previous prime is 28481407. The next prime is 28481473. The reversal of 28481459 is 95418482.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28481459 is a prime.

It is a super-2 number, since 2×28481459² = 1622387013537362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28481489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14240729 + 14240730.

It is an arithmetic number, because the mean of its divisors is an integer number (14240730).

Almost surely, 2^28481459 is an apocalyptic number.

28481459 is a deficient number, since it is larger than the sum of its proper divisors (1).

28481459 is an equidigital number, since it uses as much as digits as its factorization.

28481459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 41.

The square root of 28481459 is about 5336.8023197417. The cubic root of 28481459 is about 305.3894836074.

The spelling of 28481459 in words is "twenty-eight million, four hundred eighty-one thousand, four hundred fifty-nine".