172197597 has 16 divisors (see below), whose sum is σ = 269736768. Its totient is φ = 96334080.

The previous prime is 172197547. The next prime is 172197611. The reversal of 172197597 is 795791271.

172197597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172197597 - 2¹⁰ = 172196573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172197547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200268 + ... + 201125.

It is an arithmetic number, because the mean of its divisors is an integer number (16858548).

Almost surely, 2^172197597 is an apocalyptic number.

It is an amenable number.

172197597 is a deficient number, since it is larger than the sum of its proper divisors (97539171).

172197597 is a wasteful number, since it uses less digits than its factorization.

172197597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401420.

The product of its digits is 277830, while the sum is 48.

The square root of 172197597 is about 13122.4082012411. The cubic root of 172197597 is about 556.3426594452.

The spelling of 172197597 in words is "one hundred seventy-two million, one hundred ninety-seven thousand, five hundred ninety-seven".