196213859 has 4 divisors (see below), whose sum is σ = 200777016. Its totient is φ = 191650704.

The previous prime is 196213819. The next prime is 196213877. The reversal of 196213859 is 958312691.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196213859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196213819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2281514 + ... + 2281599.

It is an arithmetic number, because the mean of its divisors is an integer number (50194254).

Almost surely, 2^196213859 is an apocalyptic number.

196213859 is a deficient number, since it is larger than the sum of its proper divisors (4563157).

196213859 is an equidigital number, since it uses as much as digits as its factorization.

196213859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563156.

The product of its digits is 116640, while the sum is 44.

The square root of 196213859 is about 14007.6357391246. The cubic root of 196213859 is about 581.0897654591.

The spelling of 196213859 in words is "one hundred ninety-six million, two hundred thirteen thousand, eight hundred fifty-nine".