849940854 has 16 divisors (see below), whose sum is σ = 1942722048. Its totient is φ = 242840232.

The previous prime is 849940841. The next prime is 849940943. The reversal of 849940854 is 458049948.

It is a junction number, because it is equal to n+sod(n) for n = 849940797 and 849940806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10118302 + ... + 10118385.

It is an arithmetic number, because the mean of its divisors is an integer number (121420128).

Almost surely, 2^849940854 is an apocalyptic number.

849940854 is an abundant number, since it is smaller than the sum of its proper divisors (1092781194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

849940854 is a wasteful number, since it uses less digits than its factorization.

849940854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20236699.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 849940854 is about 29153.7451110488. The cubic root of 849940854 is about 947.2462652539.

The spelling of 849940854 in words is "eight hundred forty-nine million, nine hundred forty thousand, eight hundred fifty-four".