42854879 has 4 divisors (see below), whose sum is σ = 43557480. Its totient is φ = 42152280.

The previous prime is 42854873. The next prime is 42854887. The reversal of 42854879 is 97845824.

It is a happy number.

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 42854879 - 2⁴ = 42854863 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 (42854873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351209 + ... + 351330.

It is an arithmetic number, because the mean of its divisors is an integer number (10889370).

Almost surely, 2^42854879 is an apocalyptic number.

42854879 is a deficient number, since it is larger than the sum of its proper divisors (702601).

42854879 is an equidigital number, since it uses as much as digits as its factorization.

42854879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702600.

The product of its digits is 645120, while the sum is 47.

The square root of 42854879 is about 6546.3637998510. The cubic root of 42854879 is about 349.9452404126.

The spelling of 42854879 in words is "forty-two million, eight hundred fifty-four thousand, eight hundred seventy-nine".