42705863 has 8 divisors (see below), whose sum is σ = 45802800. Its totient is φ = 39693888.

The previous prime is 42705851. The next prime is 42705877. The reversal of 42705863 is 36850724.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42705863 - 2⁴ = 42705847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42705823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20198 + ... + 22211.

It is an arithmetic number, because the mean of its divisors is an integer number (5725350).

Almost surely, 2^42705863 is an apocalyptic number.

42705863 is a deficient number, since it is larger than the sum of its proper divisors (3096937).

42705863 is a wasteful number, since it uses less digits than its factorization.

42705863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42481.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 42705863 is about 6534.9723029252. The cubic root of 42705863 is about 349.5391567416.

The spelling of 42705863 in words is "forty-two million, seven hundred five thousand, eight hundred sixty-three".