196218479 has 2 divisors, whose sum is σ = 196218480. Its totient is φ = 196218478.

The previous prime is 196218469. The next prime is 196218527. The reversal of 196218479 is 974812691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196218479 - 2⁸ = 196218223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196218469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98109239 + 98109240.

It is an arithmetic number, because the mean of its divisors is an integer number (98109240).

Almost surely, 2^196218479 is an apocalyptic number.

196218479 is a deficient number, since it is larger than the sum of its proper divisors (1).

196218479 is an equidigital number, since it uses as much as digits as its factorization.

196218479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 47.

The square root of 196218479 is about 14007.8006482103. The cubic root of 196218479 is about 581.0943261524.

The spelling of 196218479 in words is "one hundred ninety-six million, two hundred eighteen thousand, four hundred seventy-nine".