193794947 has 2 divisors, whose sum is σ = 193794948. Its totient is φ = 193794946.

The previous prime is 193794943. The next prime is 193794949. The reversal of 193794947 is 749497391.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 193794947 - 2² = 193794943 is a prime.

Together with 193794949, 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 (193794943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96897473 + 96897474.

It is an arithmetic number, because the mean of its divisors is an integer number (96897474).

Almost surely, 2^193794947 is an apocalyptic number.

193794947 is a deficient number, since it is larger than the sum of its proper divisors (1).

193794947 is an equidigital number, since it uses as much as digits as its factorization.

193794947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 53.

The square root of 193794947 is about 13921.0253573507. The cubic root of 193794947 is about 578.6920059070.

The spelling of 193794947 in words is "one hundred ninety-three million, seven hundred ninety-four thousand, nine hundred forty-seven".