172970067 has 4 divisors (see below), whose sum is σ = 230626760. Its totient is φ = 115313376.

The previous prime is 172970059. The next prime is 172970107. The reversal of 172970067 is 760079271.

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

It is not a de Polignac number, because 172970067 - 2³ = 172970059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172978067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28828342 + ... + 28828347.

It is an arithmetic number, because the mean of its divisors is an integer number (57656690).

Almost surely, 2^172970067 is an apocalyptic number.

172970067 is a deficient number, since it is larger than the sum of its proper divisors (57656693).

172970067 is an equidigital number, since it uses as much as digits as its factorization.

172970067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57656692.

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 172970067 is about 13151.8085068176. The cubic root of 172970067 is about 557.1733272243.

The spelling of 172970067 in words is "one hundred seventy-two million, nine hundred seventy thousand, sixty-seven".