172072067 has 2 divisors, whose sum is σ = 172072068. Its totient is φ = 172072066.

The previous prime is 172072057. The next prime is 172072073. The reversal of 172072067 is 760270271.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172072067 - 2⁸ = 172071811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (172072027) 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 as a sum of consecutive naturals, namely, 86036033 + 86036034.

It is an arithmetic number, because the mean of its divisors is an integer number (86036034).

Almost surely, 2^172072067 is an apocalyptic number.

172072067 is a deficient number, since it is larger than the sum of its proper divisors (1).

172072067 is an equidigital number, since it uses as much as digits as its factorization.

172072067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 172072067 is about 13117.6242894817. The cubic root of 172072067 is about 556.2074375210.

The spelling of 172072067 in words is "one hundred seventy-two million, seventy-two thousand, sixty-seven".