196880681 has 4 divisors (see below), whose sum is σ = 203669700. Its totient is φ = 190091664.

The previous prime is 196880633. The next prime is 196880693. The reversal of 196880681 is 186088691.

196880681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 186088691 = 31 ⋅6002861.

It can be written as a sum of positive squares in 2 ways, for example, as 141824281 + 55056400 = 11909^2 + 7420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196880681 is a prime.

It is a super-2 number, since 2×196880681² = 77524005102047522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196889681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3394466 + ... + 3394523.

It is an arithmetic number, because the mean of its divisors is an integer number (50917425).

Almost surely, 2^196880681 is an apocalyptic number.

It is an amenable number.

196880681 is a deficient number, since it is larger than the sum of its proper divisors (6789019).

196880681 is an equidigital number, since it uses as much as digits as its factorization.

196880681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6789018.

The product of its (nonzero) digits is 165888, while the sum is 47.

The square root of 196880681 is about 14031.4176404239. The cubic root of 196880681 is about 581.7472883636.

The spelling of 196880681 in words is "one hundred ninety-six million, eight hundred eighty thousand, six hundred eighty-one".