196846981 has 2 divisors, whose sum is σ = 196846982. Its totient is φ = 196846980.

The previous prime is 196846957. The next prime is 196846997. The reversal of 196846981 is 189648691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122456356 + 74390625 = 11066^2 + 8625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196846981 is a prime.

It is a super-2 number, since 2×196846981² = 77497467857628722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196840981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98423490 + 98423491.

It is an arithmetic number, because the mean of its divisors is an integer number (98423491).

Almost surely, 2^196846981 is an apocalyptic number.

It is an amenable number.

196846981 is a deficient number, since it is larger than the sum of its proper divisors (1).

196846981 is an equidigital number, since it uses as much as digits as its factorization.

196846981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 52.

The square root of 196846981 is about 14030.2167125102. The cubic root of 196846981 is about 581.7140939736.

The spelling of 196846981 in words is "one hundred ninety-six million, eight hundred forty-six thousand, nine hundred eighty-one".