671127256 has 8 divisors (see below), whose sum is σ = 1258363620. Its totient is φ = 335563624.

The previous prime is 671127229. The next prime is 671127257. The reversal of 671127256 is 652721176.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671127257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41945446 + ... + 41945461.

Almost surely, 2^671127256 is an apocalyptic number.

It is an amenable number.

671127256 is a deficient number, since it is larger than the sum of its proper divisors (587236364).

671127256 is a wasteful number, since it uses less digits than its factorization.

671127256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83890913 (or 83890909 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 671127256 is about 25906.1239092227. The cubic root of 671127256 is about 875.5244772920.

The spelling of 671127256 in words is "six hundred seventy-one million, one hundred twenty-seven thousand, two hundred fifty-six".