197850969 has 6 divisors (see below), whose sum is σ = 285784746. Its totient is φ = 131900640.

The previous prime is 197850967. The next prime is 197850977. The reversal of 197850969 is 969058791.

197850969 is a `hidden beast` number, since 1 + 9 + 78 + 509 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 168039369 + 29811600 = 12963^2 + 5460^2 .

It is not a de Polignac number, because 197850969 - 2¹ = 197850967 is a prime.

It is a super-2 number, since 2×197850969² = 78290011868477922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197850967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10991712 + ... + 10991729.

It is an arithmetic number, because the mean of its divisors is an integer number (47630791).

Almost surely, 2^197850969 is an apocalyptic number.

It is an amenable number.

197850969 is a deficient number, since it is larger than the sum of its proper divisors (87933777).

197850969 is a wasteful number, since it uses less digits than its factorization.

197850969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21983447 (or 21983444 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The square root of 197850969 is about 14065.9506966291. The cubic root of 197850969 is about 582.7013986733.

The spelling of 197850969 in words is "one hundred ninety-seven million, eight hundred fifty thousand, nine hundred sixty-nine".