849870198 has 16 divisors (see below), whose sum is σ = 1888600560. Its totient is φ = 283290048.

The previous prime is 849870179. The next prime is 849870221. The reversal of 849870198 is 891078948.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 15738337 = 849870198 / (8 + 4 + 9 + 8 + 7 + 0 + 1 + 9 + 8).

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, 7869115 + ... + 7869222.

It is an arithmetic number, because the mean of its divisors is an integer number (118037535).

Almost surely, 2^849870198 is an apocalyptic number.

849870198 is an abundant number, since it is smaller than the sum of its proper divisors (1038730362).

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

849870198 is a wasteful number, since it uses less digits than its factorization.

849870198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15738348 (or 15738342 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The square root of 849870198 is about 29152.5333032997. The cubic root of 849870198 is about 947.2200161776.

The spelling of 849870198 in words is "eight hundred forty-nine million, eight hundred seventy thousand, one hundred ninety-eight".