172097306 has 16 divisors (see below), whose sum is σ = 266796288. Its totient is φ = 83172000.

The previous prime is 172097291. The next prime is 172097311. The reversal of 172097306 is 603790271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89006 + ... + 90918.

It is an arithmetic number, because the mean of its divisors is an integer number (16674768).

Almost surely, 2^172097306 is an apocalyptic number.

172097306 is a deficient number, since it is larger than the sum of its proper divisors (94698982).

172097306 is a wasteful number, since it uses less digits than its factorization.

172097306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 172097306 is about 13118.5862805411. The cubic root of 172097306 is about 556.2346304553.

The spelling of 172097306 in words is "one hundred seventy-two million, ninety-seven thousand, three hundred six".