197729349 has 8 divisors (see below), whose sum is σ = 263801280. Its totient is φ = 131738496.

The previous prime is 197729341. The next prime is 197729353. The reversal of 197729349 is 943927791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 197729349 - 2³ = 197729341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197729341) 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 7 ways as a sum of consecutive naturals, for example, 14329 + ... + 24510.

It is an arithmetic number, because the mean of its divisors is an integer number (32975160).

Almost surely, 2^197729349 is an apocalyptic number.

It is an amenable number.

197729349 is a deficient number, since it is larger than the sum of its proper divisors (66071931).

197729349 is a wasteful number, since it uses less digits than its factorization.

197729349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40539.

The product of its digits is 857304, while the sum is 51.

The square root of 197729349 is about 14061.6268262246. The cubic root of 197729349 is about 582.5819776929.

The spelling of 197729349 in words is "one hundred ninety-seven million, seven hundred twenty-nine thousand, three hundred forty-nine".