840860854 has 8 divisors (see below), whose sum is σ = 1280116728. Its totient is φ = 414155280.

The previous prime is 840860837. The next prime is 840860857. The reversal of 840860854 is 458068048.

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

It is a self number, because there is not a number n which added to its sum of digits gives 840860854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840860857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3137407 + ... + 3137674.

It is an arithmetic number, because the mean of its divisors is an integer number (160014591).

Almost surely, 2^840860854 is an apocalyptic number.

840860854 is a deficient number, since it is larger than the sum of its proper divisors (439255874).

840860854 is a wasteful number, since it uses less digits than its factorization.

840860854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6275150.

The product of its (nonzero) digits is 245760, while the sum is 43.

The square root of 840860854 is about 28997.6008317930. The cubic root of 840860854 is about 943.8610071082.

The spelling of 840860854 in words is "eight hundred forty million, eight hundred sixty thousand, eight hundred fifty-four".