42866879 has 8 divisors (see below), whose sum is σ = 46813440. Its totient is φ = 38928600.

The previous prime is 42866839. The next prime is 42866891. The reversal of 42866879 is 97866824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42866879 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 (42866819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14714 + ... + 17384.

It is an arithmetic number, because the mean of its divisors is an integer number (5851680).

Almost surely, 2^42866879 is an apocalyptic number.

42866879 is a deficient number, since it is larger than the sum of its proper divisors (3946561).

42866879 is a wasteful number, since it uses less digits than its factorization.

42866879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141.

The product of its digits is 1161216, while the sum is 50.

The square root of 42866879 is about 6547.2802750455. The cubic root of 42866879 is about 349.9779006455.

Subtracting 42866879 from its reverse (97866824), we obtain a palindrome (54999945).

The spelling of 42866879 in words is "forty-two million, eight hundred sixty-six thousand, eight hundred seventy-nine".