42693559 has 2 divisors, whose sum is σ = 42693560. Its totient is φ = 42693558.

The previous prime is 42693557. The next prime is 42693583. The reversal of 42693559 is 95539624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42693559 - 2¹ = 42693557 is a prime.

Together with 42693557, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42693557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21346779 + 21346780.

It is an arithmetic number, because the mean of its divisors is an integer number (21346780).

Almost surely, 2^42693559 is an apocalyptic number.

42693559 is a deficient number, since it is larger than the sum of its proper divisors (1).

42693559 is an equidigital number, since it uses as much as digits as its factorization.

42693559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 43.

The square root of 42693559 is about 6534.0308386172. The cubic root of 42693559 is about 349.5055849041.

The spelling of 42693559 in words is "forty-two million, six hundred ninety-three thousand, five hundred fifty-nine".