197212869 has 48 divisors (see below), whose sum is σ = 350663040. Its totient is φ = 104232960.

The previous prime is 197212861. The next prime is 197212871. The reversal of 197212869 is 968212791.

197212869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 197212869 - 2³ = 197212861 is a prime.

It is a super-2 number, since 2×197212869² = 77785831398422322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197212861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61629 + ... + 64749.

It is an arithmetic number, because the mean of its divisors is an integer number (7305480).

Almost surely, 2^197212869 is an apocalyptic number.

It is an amenable number.

197212869 is a deficient number, since it is larger than the sum of its proper divisors (153450171).

197212869 is a wasteful number, since it uses less digits than its factorization.

197212869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210 (or 3207 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 197212869 is about 14043.2499443683. The cubic root of 197212869 is about 582.0742899464.

It can be divided in two parts, 1972 and 12869, that added together give a palindrome (14841).

The spelling of 197212869 in words is "one hundred ninety-seven million, two hundred twelve thousand, eight hundred sixty-nine".