197617 has 12 divisors (see below), whose sum is σ = 238260. Its totient is φ = 163296.

The previous prime is 197609. The next prime is 197621. The reversal of 197617 is 716791.

197617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 159201 + 38416 = 399^2 + 196^2 .

It is not a de Polignac number, because 197617 - 2³ = 197609 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1759 + ... + 1867.

It is an arithmetic number, because the mean of its divisors is an integer number (19855).

2¹⁹⁷⁶¹⁷ is an apocalyptic number.

It is an amenable number.

197617 is a deficient number, since it is larger than the sum of its proper divisors (40643).

197617 is a wasteful number, since it uses less digits than its factorization.

197617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 153 counting only the distinct ones).

The product of its digits is 2646, while the sum is 31.

The square root of 197617 is about 444.5413366606. The cubic root of 197617 is about 58.2471616563.

The spelling of 197617 in words is "one hundred ninety-seven thousand, six hundred seventeen".