671700231 has 12 divisors (see below), whose sum is σ = 975596440. Its totient is φ = 445325040.

The previous prime is 671700221. The next prime is 671700247. The reversal of 671700231 is 132007176.

It is not a de Polignac number, because 671700231 - 2⁶ = 671700167 is a prime.

It is a super-2 number, since 2×671700231² = 902362400650906722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 671700195 and 671700204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671700221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204541 + ... + 207798.

Almost surely, 2^671700231 is an apocalyptic number.

671700231 is a deficient number, since it is larger than the sum of its proper divisors (303896209).

671700231 is a wasteful number, since it uses less digits than its factorization.

671700231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412526 (or 412523 counting only the distinct ones).

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

The square root of 671700231 is about 25917.1802285665. The cubic root of 671700231 is about 875.7735661388.

The spelling of 671700231 in words is "six hundred seventy-one million, seven hundred thousand, two hundred thirty-one".