42861767 has 4 divisors (see below), whose sum is σ = 46158840. Its totient is φ = 39564696.

The previous prime is 42861761. The next prime is 42861779. The reversal of 42861767 is 76716824.

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 42861767 - 2⁴ = 42861751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42861761) 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 3 ways as a sum of consecutive naturals, for example, 1648517 + ... + 1648542.

It is an arithmetic number, because the mean of its divisors is an integer number (11539710).

Almost surely, 2^42861767 is an apocalyptic number.

42861767 is a deficient number, since it is larger than the sum of its proper divisors (3297073).

42861767 is a wasteful number, since it uses less digits than its factorization.

42861767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297072.

The product of its digits is 112896, while the sum is 41.

The square root of 42861767 is about 6546.8898722981. The cubic root of 42861767 is about 349.9639881316.

The spelling of 42861767 in words is "forty-two million, eight hundred sixty-one thousand, seven hundred sixty-seven".