42864111 has 12 divisors (see below), whose sum is σ = 64607088. Its totient is φ = 27333504.

The previous prime is 42864109. The next prime is 42864113. The reversal of 42864111 is 11146824.

It is a happy number.

42864111 is a `hidden beast` number, since 4 + 2 + 8 + 641 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (42864109) and next prime (42864113).

It is not a de Polignac number, because 42864111 - 2¹ = 42864109 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42864113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103330 + ... + 103743.

It is an arithmetic number, because the mean of its divisors is an integer number (5383924).

Almost surely, 2^42864111 is an apocalyptic number.

42864111 is a deficient number, since it is larger than the sum of its proper divisors (21742977).

42864111 is a wasteful number, since it uses less digits than its factorization.

42864111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207102 (or 207099 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 42864111 is about 6547.0688861505. The cubic root of 42864111 is about 349.9703675593.

The spelling of 42864111 in words is "forty-two million, eight hundred sixty-four thousand, one hundred eleven".