173172366 has 12 divisors (see below), whose sum is σ = 375206832. Its totient is φ = 57724116.

The previous prime is 173172361. The next prime is 173172383. The reversal of 173172366 is 663271371.

It is a self number, because there is not a number n which added to its sum of digits gives 173172366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173172361) 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 5 ways as a sum of consecutive naturals, for example, 4810326 + ... + 4810361.

It is an arithmetic number, because the mean of its divisors is an integer number (31267236).

Almost surely, 2^173172366 is an apocalyptic number.

173172366 is an abundant number, since it is smaller than the sum of its proper divisors (202034466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

173172366 is a wasteful number, since it uses less digits than its factorization.

173172366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9620695 (or 9620692 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 173172366 is about 13159.4971788439. The cubic root of 173172366 is about 557.3904586136.

It can be divided in two parts, 17317 and 2366, that added together give a 9-th power (19683 = 3⁹).

The spelling of 173172366 in words is "one hundred seventy-three million, one hundred seventy-two thousand, three hundred sixty-six".