197662349 has 4 divisors (see below), whose sum is σ = 209289564. Its totient is φ = 186035136.

The previous prime is 197662343. The next prime is 197662351. The reversal of 197662349 is 943266791.

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 111302500 + 86359849 = 10550^2 + 9293^2 .

It is a cyclic number.

It is not a de Polignac number, because 197662349 - 2¹⁶ = 197596813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197662343) 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 3 ways as a sum of consecutive naturals, for example, 5813582 + ... + 5813615.

It is an arithmetic number, because the mean of its divisors is an integer number (52322391).

Almost surely, 2^197662349 is an apocalyptic number.

It is an amenable number.

197662349 is a deficient number, since it is larger than the sum of its proper divisors (11627215).

197662349 is a wasteful number, since it uses less digits than its factorization.

197662349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11627214.

The product of its digits is 489888, while the sum is 47.

The square root of 197662349 is about 14059.2442542265. The cubic root of 197662349 is about 582.5161682042.

The spelling of 197662349 in words is "one hundred ninety-seven million, six hundred sixty-two thousand, three hundred forty-nine".