197761086 has 24 divisors (see below), whose sum is σ = 434880264. Its totient is φ = 64936080.

The previous prime is 197761037. The next prime is 197761087. The reversal of 197761086 is 680167791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197761087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80785 + ... + 83196.

It is an arithmetic number, because the mean of its divisors is an integer number (18120011).

Almost surely, 2^197761086 is an apocalyptic number.

197761086 is an abundant number, since it is smaller than the sum of its proper divisors (237119178).

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

197761086 is a wasteful number, since it uses less digits than its factorization.

197761086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164056 (or 164053 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 197761086 is about 14062.7552776830. The cubic root of 197761086 is about 582.6131455749.

The spelling of 197761086 in words is "one hundred ninety-seven million, seven hundred sixty-one thousand, eighty-six".