28670459 has 2 divisors, whose sum is σ = 28670460. Its totient is φ = 28670458.

The previous prime is 28670429. The next prime is 28670479. The reversal of 28670459 is 95407682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28670459 - 2¹⁶ = 28604923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28670429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14335229 + 14335230.

It is an arithmetic number, because the mean of its divisors is an integer number (14335230).

Almost surely, 2^28670459 is an apocalyptic number.

28670459 is a deficient number, since it is larger than the sum of its proper divisors (1).

28670459 is an equidigital number, since it uses as much as digits as its factorization.

28670459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 28670459 is about 5354.4802735653. The cubic root of 28670459 is about 306.0635058363.

The spelling of 28670459 in words is "twenty-eight million, six hundred seventy thousand, four hundred fifty-nine".