172968897 has 8 divisors (see below), whose sum is σ = 244191456. Its totient is φ = 108529472.

The previous prime is 172968881. The next prime is 172968911. The reversal of 172968897 is 798869271.

172968897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 172968897 - 2⁴ = 172968881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172968857) 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, 1695723 + ... + 1695824.

It is an arithmetic number, because the mean of its divisors is an integer number (30523932).

Almost surely, 2^172968897 is an apocalyptic number.

172968897 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

172968897 is a deficient number, since it is larger than the sum of its proper divisors (71222559).

172968897 is a wasteful number, since it uses less digits than its factorization.

172968897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391567.

The product of its digits is 3048192, while the sum is 57.

The square root of 172968897 is about 13151.7640261677. The cubic root of 172968897 is about 557.1720709487.

The spelling of 172968897 in words is "one hundred seventy-two million, nine hundred sixty-eight thousand, eight hundred ninety-seven".