197085836 has 6 divisors (see below), whose sum is σ = 344900220. Its totient is φ = 98542916.

The previous prime is 197085821. The next prime is 197085857. The reversal of 197085836 is 638580791.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24635726 + ... + 24635733.

It is an arithmetic number, because the mean of its divisors is an integer number (57483370).

Almost surely, 2^197085836 is an apocalyptic number.

It is an amenable number.

197085836 is a deficient number, since it is larger than the sum of its proper divisors (147814384).

197085836 is a wasteful number, since it uses less digits than its factorization.

197085836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49271463 (or 49271461 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 197085836 is about 14038.7262955013. The cubic root of 197085836 is about 581.9492836933.

The spelling of 197085836 in words is "one hundred ninety-seven million, eighty-five thousand, eight hundred thirty-six".