712137671 has 4 divisors (see below), whose sum is σ = 813871632. Its totient is φ = 610403712.

The previous prime is 712137653. The next prime is 712137677. The reversal of 712137671 is 176731217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-712137671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712137677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50866970 + ... + 50866983.

It is an arithmetic number, because the mean of its divisors is an integer number (203467908).

Almost surely, 2^712137671 is an apocalyptic number.

712137671 is a deficient number, since it is larger than the sum of its proper divisors (101733961).

712137671 is a wasteful number, since it uses less digits than its factorization.

712137671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101733960.

The product of its digits is 12348, while the sum is 35.

The square root of 712137671 is about 26685.9077229912. The cubic root of 712137671 is about 893.0065683968.

Adding to 712137671 its reverse (176731217), we get a palindrome (888868888).

The spelling of 712137671 in words is "seven hundred twelve million, one hundred thirty-seven thousand, six hundred seventy-one".