28477459 has 2 divisors, whose sum is σ = 28477460. Its totient is φ = 28477458.

The previous prime is 28477439. The next prime is 28477487. The reversal of 28477459 is 95477482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28477459 - 2⁹ = 28476947 is a prime.

It is not a weakly prime, because it can be changed into another prime (28477429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14238729 + 14238730.

It is an arithmetic number, because the mean of its divisors is an integer number (14238730).

Almost surely, 2^28477459 is an apocalyptic number.

28477459 is a deficient number, since it is larger than the sum of its proper divisors (1).

28477459 is an equidigital number, since it uses as much as digits as its factorization.

28477459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 46.

The square root of 28477459 is about 5336.4275503374. The cubic root of 28477459 is about 305.3751864099.

The spelling of 28477459 in words is "twenty-eight million, four hundred seventy-seven thousand, four hundred fifty-nine".