197170349 has 4 divisors (see below), whose sum is σ = 198310236. Its totient is φ = 196030464.

The previous prime is 197170331. The next prime is 197170357. The reversal of 197170349 is 943071791.

197170349 = 8106² + 8107² + 8108².

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 147015625 + 50154724 = 12125^2 + 7082^2 .

It is a cyclic number.

It is not a de Polignac number, because 197170349 - 2¹⁶ = 197104813 is a prime.

It is a super-2 number, since 2×197170349² = 77752293049563602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197170319) 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, 569684 + ... + 570029.

It is an arithmetic number, because the mean of its divisors is an integer number (49577559).

Almost surely, 2^197170349 is an apocalyptic number.

It is an amenable number.

197170349 is a deficient number, since it is larger than the sum of its proper divisors (1139887).

197170349 is a wasteful number, since it uses less digits than its factorization.

197170349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139886.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 197170349 is about 14041.7359681772. The cubic root of 197170349 is about 582.0324543098.

The spelling of 197170349 in words is "one hundred ninety-seven million, one hundred seventy thousand, three hundred forty-nine".