197837325 has 72 divisors (see below), whose sum is σ = 412027200. Its totient is φ = 88865280.

The previous prime is 197837323. The next prime is 197837357. The reversal of 197837325 is 523738791.

It is a happy number.

It is not a de Polignac number, because 197837325 - 2¹ = 197837323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197837323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 91861 + ... + 93989.

It is an arithmetic number, because the mean of its divisors is an integer number (5722600).

Almost surely, 2^197837325 is an apocalyptic number.

197837325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

197837325 is an abundant number, since it is smaller than the sum of its proper divisors (214189875).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197837325 is a wasteful number, since it uses less digits than its factorization.

197837325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211 (or 2203 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 197837325 is about 14065.4656872782. The cubic root of 197837325 is about 582.6880038090.

The spelling of 197837325 in words is "one hundred ninety-seven million, eight hundred thirty-seven thousand, three hundred twenty-five".