197853086 has 4 divisors (see below), whose sum is σ = 296779632. Its totient is φ = 98926542.

The previous prime is 197853031. The next prime is 197853101. The reversal of 197853086 is 680358791.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 197853086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49463270 + ... + 49463273.

It is an arithmetic number, because the mean of its divisors is an integer number (74194908).

Almost surely, 2^197853086 is an apocalyptic number.

197853086 is a deficient number, since it is larger than the sum of its proper divisors (98926546).

197853086 is an equidigital number, since it uses as much as digits as its factorization.

197853086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98926545.

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

The square root of 197853086 is about 14066.0259490732. The cubic root of 197853086 is about 582.7034769622.

The spelling of 197853086 in words is "one hundred ninety-seven million, eight hundred fifty-three thousand, eighty-six".