198766834 has 24 divisors (see below), whose sum is σ = 347362560. Its totient is φ = 85054536.

The previous prime is 198766819. The next prime is 198766837. The reversal of 198766834 is 438667891.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (198766837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88959 + ... + 91165.

It is an arithmetic number, because the mean of its divisors is an integer number (14473440).

Almost surely, 2^198766834 is an apocalyptic number.

198766834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

198766834 is a deficient number, since it is larger than the sum of its proper divisors (148595726).

198766834 is a wasteful number, since it uses less digits than its factorization.

198766834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142 (or 3135 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 198766834 is about 14098.4692076835. The cubic root of 198766834 is about 583.5991357546.

The spelling of 198766834 in words is "one hundred ninety-eight million, seven hundred sixty-six thousand, eight hundred thirty-four".