42671111 has 12 divisors (see below), whose sum is σ = 50035968. Its totient is φ = 36281952.

The previous prime is 42671107. The next prime is 42671129. The reversal of 42671111 is 11117624.

It is a happy number.

It is not a de Polignac number, because 42671111 - 2² = 42671107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42671011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2795 + ... + 9651.

It is an arithmetic number, because the mean of its divisors is an integer number (4169664).

Almost surely, 2^42671111 is an apocalyptic number.

42671111 is a deficient number, since it is larger than the sum of its proper divisors (7364857).

42671111 is a wasteful number, since it uses less digits than its factorization.

42671111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6998 (or 6991 counting only the distinct ones).

The product of its digits is 336, while the sum is 23.

The square root of 42671111 is about 6532.3128369667. The cubic root of 42671111 is about 349.4443182320. Note that the first 3 decimals are identical.

Adding to 42671111 its reverse (11117624), we get a palindrome (53788735).

The spelling of 42671111 in words is "forty-two million, six hundred seventy-one thousand, one hundred eleven".