197128632 has 16 divisors (see below), whose sum is σ = 492821640. Its totient is φ = 65709536.

The previous prime is 197128627. The next prime is 197128663. The reversal of 197128632 is 236821791.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4106823 + ... + 4106870.

Almost surely, 2^197128632 is an apocalyptic number.

197128632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197128632 is an abundant number, since it is smaller than the sum of its proper divisors (295693008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197128632 is a wasteful number, since it uses less digits than its factorization.

197128632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8213702 (or 8213698 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 197128632 is about 14040.2504251171. The cubic root of 197128632 is about 581.9914029032.

It can be divided in two parts, 1971 and 28632, that added together give a palindrome (30603).

The spelling of 197128632 in words is "one hundred ninety-seven million, one hundred twenty-eight thousand, six hundred thirty-two".