196210489 has 2 divisors, whose sum is σ = 196210490. Its totient is φ = 196210488.

The previous prime is 196210463. The next prime is 196210507. The reversal of 196210489 is 984012691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195860025 + 350464 = 13995^2 + 592^2 .

It is a cyclic number.

It is not a de Polignac number, because 196210489 - 2¹⁷ = 196079417 is a prime.

It is not a weakly prime, because it can be changed into another prime (196210429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98105244 + 98105245.

It is an arithmetic number, because the mean of its divisors is an integer number (98105245).

Almost surely, 2^196210489 is an apocalyptic number.

It is an amenable number.

196210489 is a deficient number, since it is larger than the sum of its proper divisors (1).

196210489 is an equidigital number, since it uses as much as digits as its factorization.

196210489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 196210489 is about 14007.5154470734. The cubic root of 196210489 is about 581.0864386746.

The spelling of 196210489 in words is "one hundred ninety-six million, two hundred ten thousand, four hundred eighty-nine".