42063685 has 8 divisors (see below), whose sum is σ = 50923800. Its totient is φ = 33352704.

The previous prime is 42063673. The next prime is 42063689. The reversal of 42063685 is 58636024.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3101121 + 38962564 = 1761^2 + 6242^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42063685 - 2⁷ = 42063557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42063685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42063689) 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, 36660 + ... + 37789.

It is an arithmetic number, because the mean of its divisors is an integer number (6365475).

Almost surely, 2^42063685 is an apocalyptic number.

It is an amenable number.

42063685 is a deficient number, since it is larger than the sum of its proper divisors (8860115).

42063685 is a wasteful number, since it uses less digits than its factorization.

42063685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74567.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 42063685 is about 6485.6522416793. The cubic root of 42063685 is about 347.7782668396.

The spelling of 42063685 in words is "forty-two million, sixty-three thousand, six hundred eighty-five".