671898234 has 32 divisors (see below), whose sum is σ = 1543743360. Its totient is φ = 190973952.

The previous prime is 671898233. The next prime is 671898251. The reversal of 671898234 is 432898176.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (671898233) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33339 + ... + 49550.

It is an arithmetic number, because the mean of its divisors is an integer number (48241980).

Almost surely, 2^671898234 is an apocalyptic number.

671898234 is an abundant number, since it is smaller than the sum of its proper divisors (871845126).

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

671898234 is a wasteful number, since it uses less digits than its factorization.

671898234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83094.

The product of its digits is 580608, while the sum is 48.

The square root of 671898234 is about 25920.9998649743. Note that the first 3 decimals coincide. The cubic root of 671898234 is about 875.8596108501.

The spelling of 671898234 in words is "six hundred seventy-one million, eight hundred ninety-eight thousand, two hundred thirty-four".