172000867 has 2 divisors, whose sum is σ = 172000868. Its totient is φ = 172000866.

The previous prime is 172000823. The next prime is 172000889. The reversal of 172000867 is 768000271.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172000867 - 2¹⁹ = 171476579 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (172000567) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86000433 + 86000434.

It is an arithmetic number, because the mean of its divisors is an integer number (86000434).

Almost surely, 2^172000867 is an apocalyptic number.

172000867 is a deficient number, since it is larger than the sum of its proper divisors (1).

172000867 is an equidigital number, since it uses as much as digits as its factorization.

172000867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 172000867 is about 13114.9101026275. The cubic root of 172000867 is about 556.1307110779.

The spelling of 172000867 in words is "one hundred seventy-two million, eight hundred sixty-seven", and thus it is an aban number.