197122808 has 8 divisors (see below), whose sum is σ = 369605280. Its totient is φ = 98561400.

The previous prime is 197122787. The next prime is 197122819. The reversal of 197122808 is 808221791.

It is a tau number, because it is divible by the number of its divisors (8).

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, 12320168 + ... + 12320183.

It is an arithmetic number, because the mean of its divisors is an integer number (46200660).

Almost surely, 2^197122808 is an apocalyptic number.

It is an amenable number.

197122808 is a deficient number, since it is larger than the sum of its proper divisors (172482472).

197122808 is a wasteful number, since it uses less digits than its factorization.

197122808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24640357 (or 24640353 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 197122808 is about 14040.0430198771. The cubic root of 197122808 is about 581.9856713642.

The spelling of 197122808 in words is "one hundred ninety-seven million, one hundred twenty-two thousand, eight hundred eight".