172195768 has 8 divisors (see below), whose sum is σ = 322867080. Its totient is φ = 86097880.

The previous prime is 172195753. The next prime is 172195801. The reversal of 172195768 is 867591271.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10762228 + ... + 10762243.

It is an arithmetic number, because the mean of its divisors is an integer number (40358385).

Almost surely, 2^172195768 is an apocalyptic number.

It is an amenable number.

172195768 is a deficient number, since it is larger than the sum of its proper divisors (150671312).

172195768 is a wasteful number, since it uses less digits than its factorization.

172195768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21524477 (or 21524473 counting only the distinct ones).

The product of its digits is 211680, while the sum is 46.

The square root of 172195768 is about 13122.3385111039. The cubic root of 172195768 is about 556.3406897035.

The spelling of 172195768 in words is "one hundred seventy-two million, one hundred ninety-five thousand, seven hundred sixty-eight".