172712807 has 2 divisors, whose sum is σ = 172712808. Its totient is φ = 172712806.

The previous prime is 172712803. The next prime is 172712851. The reversal of 172712807 is 708217271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172712807 - 2² = 172712803 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 (172712803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86356403 + 86356404.

It is an arithmetic number, because the mean of its divisors is an integer number (86356404).

Almost surely, 2^172712807 is an apocalyptic number.

172712807 is a deficient number, since it is larger than the sum of its proper divisors (1).

172712807 is an equidigital number, since it uses as much as digits as its factorization.

172712807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10976, while the sum is 35.

The square root of 172712807 is about 13142.0244635292. The cubic root of 172712807 is about 556.8969604628.

The spelling of 172712807 in words is "one hundred seventy-two million, seven hundred twelve thousand, eight hundred seven".