42986771 has 4 divisors (see below), whose sum is σ = 43099392. Its totient is φ = 42874152.

The previous prime is 42986767. The next prime is 42986773. The reversal of 42986771 is 17768924.

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

It is a cyclic number.

It is not a de Polignac number, because 42986771 - 2² = 42986767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42986773) 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, 55736 + ... + 56501.

It is an arithmetic number, because the mean of its divisors is an integer number (10774848).

Almost surely, 2^42986771 is an apocalyptic number.

42986771 is a deficient number, since it is larger than the sum of its proper divisors (112621).

42986771 is a wasteful number, since it uses less digits than its factorization.

42986771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112620.

The product of its digits is 169344, while the sum is 44.

The square root of 42986771 is about 6556.4297449145. The cubic root of 42986771 is about 350.3038748708.

The spelling of 42986771 in words is "forty-two million, nine hundred eighty-six thousand, seven hundred seventy-one".