172707671 has 2 divisors, whose sum is σ = 172707672. Its totient is φ = 172707670.

The previous prime is 172707643. The next prime is 172707757. The reversal of 172707671 is 176707271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172707671 - 2¹⁰ = 172706647 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172707611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86353835 + 86353836.

It is an arithmetic number, because the mean of its divisors is an integer number (86353836).

Almost surely, 2^172707671 is an apocalyptic number.

172707671 is a deficient number, since it is larger than the sum of its proper divisors (1).

172707671 is an equidigital number, since it uses as much as digits as its factorization.

172707671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28812, while the sum is 38.

The square root of 172707671 is about 13141.8290583921. The cubic root of 172707671 is about 556.8914402176.

The spelling of 172707671 in words is "one hundred seventy-two million, seven hundred seven thousand, six hundred seventy-one".