196854947 has 2 divisors, whose sum is σ = 196854948. Its totient is φ = 196854946.

The previous prime is 196854923. The next prime is 196854949. The reversal of 196854947 is 749458691.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196854947 is a prime.

Together with 196854949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (196854949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98427473 + 98427474.

It is an arithmetic number, because the mean of its divisors is an integer number (98427474).

Almost surely, 2^196854947 is an apocalyptic number.

196854947 is a deficient number, since it is larger than the sum of its proper divisors (1).

196854947 is an equidigital number, since it uses as much as digits as its factorization.

196854947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 53.

The square root of 196854947 is about 14030.5005969139. The cubic root of 196854947 is about 581.7219407995.

The spelling of 196854947 in words is "one hundred ninety-six million, eight hundred fifty-four thousand, nine hundred forty-seven".