671289238 has 16 divisors (see below), whose sum is σ = 1023749280. Its totient is φ = 330064000.

The previous prime is 671289233. The next prime is 671289259. The reversal of 671289238 is 832982176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671289233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51048 + ... + 62836.

It is an arithmetic number, because the mean of its divisors is an integer number (63984330).

Almost surely, 2^671289238 is an apocalyptic number.

671289238 is a deficient number, since it is larger than the sum of its proper divisors (352460042).

671289238 is a wasteful number, since it uses less digits than its factorization.

671289238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12263.

The product of its digits is 290304, while the sum is 46.

The square root of 671289238 is about 25909.2500470392. The cubic root of 671289238 is about 875.5949099342.

The spelling of 671289238 in words is "six hundred seventy-one million, two hundred eighty-nine thousand, two hundred thirty-eight".