197723413 has 4 divisors (see below), whose sum is σ = 209354220. Its totient is φ = 186092608.

The previous prime is 197723377. The next prime is 197723429. The reversal of 197723413 is 314327791.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80694289 + 117029124 = 8983^2 + 10818^2 .

It is a de Polignac number, because none of the positive numbers 2^k-197723413 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197723453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5815378 + ... + 5815411.

It is an arithmetic number, because the mean of its divisors is an integer number (52338555).

Almost surely, 2^197723413 is an apocalyptic number.

It is an amenable number.

197723413 is a deficient number, since it is larger than the sum of its proper divisors (11630807).

197723413 is a wasteful number, since it uses less digits than its factorization.

197723413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11630806.

The product of its digits is 31752, while the sum is 37.

The square root of 197723413 is about 14061.4157537568. The cubic root of 197723413 is about 582.5761477689.

The spelling of 197723413 in words is "one hundred ninety-seven million, seven hundred twenty-three thousand, four hundred thirteen".