849940654 has 8 divisors (see below), whose sum is σ = 1287534168. Its totient is φ = 420762600.

The previous prime is 849940649. The next prime is 849940669. The reversal of 849940654 is 456049948.

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

It is a junction number, because it is equal to n+sod(n) for n = 849940598 and 849940607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2103612 + ... + 2104015.

It is an arithmetic number, because the mean of its divisors is an integer number (160941771).

Almost surely, 2^849940654 is an apocalyptic number.

849940654 is a deficient number, since it is larger than the sum of its proper divisors (437593514).

849940654 is a wasteful number, since it uses less digits than its factorization.

849940654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207730.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 849940654 is about 29153.7416809575. The cubic root of 849940654 is about 947.2461909549.

The spelling of 849940654 in words is "eight hundred forty-nine million, nine hundred forty thousand, six hundred fifty-four".