671071203 has 72 divisors (see below), whose sum is σ = 1155344400. Its totient is φ = 384626880.

The previous prime is 671071171. The next prime is 671071259. The reversal of 671071203 is 302170176.

It is not a de Polignac number, because 671071203 - 2⁵ = 671071171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (671071273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1179103 + ... + 1179671.

It is an arithmetic number, because the mean of its divisors is an integer number (16046450).

Almost surely, 2^671071203 is an apocalyptic number.

671071203 is a deficient number, since it is larger than the sum of its proper divisors (484273197).

671071203 is a wasteful number, since it uses less digits than its factorization.

671071203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 671071203 is about 25905.0420381825. The cubic root of 671071203 is about 875.5001018156.

The spelling of 671071203 in words is "six hundred seventy-one million, seventy-one thousand, two hundred three".