197059830 has 128 divisors (see below), whose sum is σ = 554273280. Its totient is φ = 44328960.

The previous prime is 197059813. The next prime is 197059831. The reversal of 197059830 is 38950791.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197059831) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 332014 + ... + 332606.

It is an arithmetic number, because the mean of its divisors is an integer number (4330260).

Almost surely, 2^197059830 is an apocalyptic number.

197059830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 197059830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277136640).

197059830 is an abundant number, since it is smaller than the sum of its proper divisors (357213450).

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

197059830 is a wasteful number, since it uses less digits than its factorization.

197059830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 197059830 is about 14037.8000413170. The cubic root of 197059830 is about 581.9236859823.

The spelling of 197059830 in words is "one hundred ninety-seven million, fifty-nine thousand, eight hundred thirty".