194056787 has 2 divisors, whose sum is σ = 194056788. Its totient is φ = 194056786.

The previous prime is 194056781. The next prime is 194056789. The reversal of 194056787 is 787650491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194056787 - 2¹⁴ = 194040403 is a prime.

Together with 194056789, 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 (194056781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97028393 + 97028394.

It is an arithmetic number, because the mean of its divisors is an integer number (97028394).

Almost surely, 2^194056787 is an apocalyptic number.

194056787 is a deficient number, since it is larger than the sum of its proper divisors (1).

194056787 is an equidigital number, since it uses as much as digits as its factorization.

194056787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 194056787 is about 13930.4266625255. The cubic root of 194056787 is about 578.9525158355.

The spelling of 194056787 in words is "one hundred ninety-four million, fifty-six thousand, seven hundred eighty-seven".