42086983 has 4 divisors (see below), whose sum is σ = 42105808. Its totient is φ = 42068160.

The previous prime is 42086969. The next prime is 42087029. The reversal of 42086983 is 38968024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42086983 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 (42086903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5523 + ... + 10708.

It is an arithmetic number, because the mean of its divisors is an integer number (10526452).

Almost surely, 2^42086983 is an apocalyptic number.

42086983 is a deficient number, since it is larger than the sum of its proper divisors (18825).

42086983 is a wasteful number, since it uses less digits than its factorization.

42086983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18824.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 42086983 is about 6487.4481115459. The cubic root of 42086983 is about 347.8424634864.

The spelling of 42086983 in words is "forty-two million, eighty-six thousand, nine hundred eighty-three".