197806885 has 8 divisors (see below), whose sum is σ = 238133376. Its totient is φ = 157735440.

The previous prime is 197806867. The next prime is 197806897. The reversal of 197806885 is 588608791.

197806885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 197806885 - 2¹⁹ = 197282597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62049 + ... + 65158.

It is an arithmetic number, because the mean of its divisors is an integer number (29766672).

Almost surely, 2^197806885 is an apocalyptic number.

It is an amenable number.

197806885 is a deficient number, since it is larger than the sum of its proper divisors (40326491).

197806885 is a wasteful number, since it uses less digits than its factorization.

197806885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127523.

The product of its (nonzero) digits is 967680, while the sum is 52.

The square root of 197806885 is about 14064.3835627446. The cubic root of 197806885 is about 582.6581174152.

The spelling of 197806885 in words is "one hundred ninety-seven million, eight hundred six thousand, eight hundred eighty-five".