172080867 has 16 divisors (see below), whose sum is σ = 271261440. Its totient is φ = 94940832.

The previous prime is 172080847. The next prime is 172080869. The reversal of 172080867 is 768080271.

It is not a de Polignac number, because 172080867 - 2¹⁴ = 172064483 is a prime.

It is a super-2 number, since 2×172080867² = 59223649574943378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172080869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140673 + ... + 141890.

It is an arithmetic number, because the mean of its divisors is an integer number (16953840).

Almost surely, 2^172080867 is an apocalyptic number.

172080867 is a deficient number, since it is larger than the sum of its proper divisors (99180573).

172080867 is a wasteful number, since it uses less digits than its factorization.

172080867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282602.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 172080867 is about 13117.9597117845. The cubic root of 172080867 is about 556.2169190948.

The spelling of 172080867 in words is "one hundred seventy-two million, eighty thousand, eight hundred sixty-seven".