42759863 has 2 divisors, whose sum is σ = 42759864. Its totient is φ = 42759862.

The previous prime is 42759859. The next prime is 42759883. The reversal of 42759863 is 36895724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42759863 - 2² = 42759859 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42759803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21379931 + 21379932.

It is an arithmetic number, because the mean of its divisors is an integer number (21379932).

Almost surely, 2^42759863 is an apocalyptic number.

42759863 is a deficient number, since it is larger than the sum of its proper divisors (1).

42759863 is an equidigital number, since it uses as much as digits as its factorization.

42759863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The square root of 42759863 is about 6539.1026142736. The cubic root of 42759863 is about 349.6864211771.

The spelling of 42759863 in words is "forty-two million, seven hundred fifty-nine thousand, eight hundred sixty-three".