172942967 has 8 divisors (see below), whose sum is σ = 174201216. Its totient is φ = 171689472.

The previous prime is 172942963. The next prime is 172942993. The reversal of 172942967 is 769249271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172942967 - 2² = 172942963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172942963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101063 + ... + 102759.

It is an arithmetic number, because the mean of its divisors is an integer number (21775152).

Almost surely, 2^172942967 is an apocalyptic number.

172942967 is a deficient number, since it is larger than the sum of its proper divisors (1258249).

172942967 is a wasteful number, since it uses less digits than its factorization.

172942967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377.

The product of its digits is 381024, while the sum is 47.

The square root of 172942967 is about 13150.7781899019. The cubic root of 172942967 is about 557.1442274191.

The spelling of 172942967 in words is "one hundred seventy-two million, nine hundred forty-two thousand, nine hundred sixty-seven".