197102386 has 32 divisors (see below), whose sum is σ = 348773040. Its totient is φ = 82661376.

The previous prime is 197102383. The next prime is 197102401. The reversal of 197102386 is 683201791.

It can be written as a sum of positive squares in 8 ways, for example, as 161925625 + 35176761 = 12725^2 + 5931^2 .

It is not an unprimeable number, because it can be changed into a prime (197102383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5130 + ... + 20506.

Almost surely, 2^197102386 is an apocalyptic number.

197102386 is a deficient number, since it is larger than the sum of its proper divisors (151670654).

197102386 is a wasteful number, since it uses less digits than its factorization.

197102386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15438.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 197102386 is about 14039.3157240658. The cubic root of 197102386 is about 581.9655726891.

The spelling of 197102386 in words is "one hundred ninety-seven million, one hundred two thousand, three hundred eighty-six".