867859042 has 8 divisors (see below), whose sum is σ = 1329486336. Its totient is φ = 424696932.

The previous prime is 867859021. The next prime is 867859051. The reversal of 867859042 is 240958768.

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

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 3 ways as a sum of consecutive naturals, for example, 4616178 + ... + 4616365.

It is an arithmetic number, because the mean of its divisors is an integer number (166185792).

Almost surely, 2^867859042 is an apocalyptic number.

867859042 is a deficient number, since it is larger than the sum of its proper divisors (461627294).

867859042 is a wasteful number, since it uses less digits than its factorization.

867859042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9232592.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 867859042 is about 29459.4474150484. The cubic root of 867859042 is about 953.8565454313.

The spelling of 867859042 in words is "eight hundred sixty-seven million, eight hundred fifty-nine thousand, forty-two".