42857965 has 8 divisors (see below), whose sum is σ = 53088768. Its totient is φ = 33180240.

The previous prime is 42857959. The next prime is 42857987. The reversal of 42857965 is 56975824.

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

It is not a de Polignac number, because 42857965 - 2²¹ = 40760813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 138097 + ... + 138406.

It is an arithmetic number, because the mean of its divisors is an integer number (6636096).

Almost surely, 2^42857965 is an apocalyptic number.

It is an amenable number.

42857965 is a deficient number, since it is larger than the sum of its proper divisors (10230803).

42857965 is a wasteful number, since it uses less digits than its factorization.

42857965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276539.

The product of its digits is 604800, while the sum is 46.

The square root of 42857965 is about 6546.5994989765. The cubic root of 42857965 is about 349.9536401181.

The spelling of 42857965 in words is "forty-two million, eight hundred fifty-seven thousand, nine hundred sixty-five".