172967389 has 8 divisors (see below), whose sum is σ = 197895488. Its totient is φ = 148093920.

The previous prime is 172967369. The next prime is 172967423. The reversal of 172967389 is 983769271.

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 172967389 - 2⁵ = 172967357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172967309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6627 + ... + 19744.

It is an arithmetic number, because the mean of its divisors is an integer number (24736936).

Almost surely, 2^172967389 is an apocalyptic number.

It is an amenable number.

172967389 is a deficient number, since it is larger than the sum of its proper divisors (24928099).

172967389 is an equidigital number, since it uses as much as digits as its factorization.

172967389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27315.

The product of its digits is 1143072, while the sum is 52.

The square root of 172967389 is about 13151.7066953305. The cubic root of 172967389 is about 557.1704517405.

The spelling of 172967389 in words is "one hundred seventy-two million, nine hundred sixty-seven thousand, three hundred eighty-nine".