197680346 has 4 divisors (see below), whose sum is σ = 296520522. Its totient is φ = 98840172.

The previous prime is 197680339. The next prime is 197680363. The reversal of 197680346 is 643086791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 643086791 = 1699 ⋅378509.

It can be written as a sum of positive squares in only one way, i.e., 187827025 + 9853321 = 13705^2 + 3139^2 .

It is a junction number, because it is equal to n+sod(n) for n = 197680297 and 197680306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49420085 + ... + 49420088.

Almost surely, 2^197680346 is an apocalyptic number.

197680346 is a deficient number, since it is larger than the sum of its proper divisors (98840176).

197680346 is an equidigital number, since it uses as much as digits as its factorization.

197680346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98840175.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 197680346 is about 14059.8842811739. The cubic root of 197680346 is about 582.5338468792.

The spelling of 197680346 in words is "one hundred ninety-seven million, six hundred eighty thousand, three hundred forty-six".