197930 has 8 divisors (see below), whose sum is σ = 356292. Its totient is φ = 79168.

The previous prime is 197927. The next prime is 197933. The reversal of 197930 is 39791.

It is an interprime number because it is at equal distance from previous prime (197927) and next prime (197933).

It can be written as a sum of positive squares in 2 ways, for example, as 196249 + 1681 = 443^2 + 41^2 .

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

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 197893 and 197902.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 197930.

It is not an unprimeable number, because it can be changed into a prime (197933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9887 + ... + 9906.

2¹⁹⁷⁹³⁰ is an apocalyptic number.

197930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197930 is a deficient number, since it is larger than the sum of its proper divisors (158362).

197930 is a wasteful number, since it uses less digits than its factorization.

197930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19800.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 197930 is about 444.8932456219. The cubic root of 197930 is about 58.2778974477.

The spelling of 197930 in words is "one hundred ninety-seven thousand, nine hundred thirty".