42608459 has 2 divisors, whose sum is σ = 42608460. Its totient is φ = 42608458.

The previous prime is 42608441. The next prime is 42608473. The reversal of 42608459 is 95480624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42608459 is a prime.

It is not a weakly prime, because it can be changed into another prime (42608429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21304229 + 21304230.

It is an arithmetic number, because the mean of its divisors is an integer number (21304230).

Almost surely, 2^42608459 is an apocalyptic number.

42608459 is a deficient number, since it is larger than the sum of its proper divisors (1).

42608459 is an equidigital number, since it uses as much as digits as its factorization.

42608459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 42608459 is about 6527.5155304296. The cubic root of 42608459 is about 349.2732102022.

The spelling of 42608459 in words is "forty-two million, six hundred eight thousand, four hundred fifty-nine".