1994830417 has 2 divisors, whose sum is σ = 1994830418. Its totient is φ = 1994830416.

The previous prime is 1994830393. The next prime is 1994830421. The reversal of 1994830417 is 7140384991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1364268096 + 630562321 = 36936^2 + 25111^2 .

It is an emirp because it is prime and its reverse (7140384991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1994830417 - 2⁷ = 1994830289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1994830427) 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 as a sum of consecutive naturals, namely, 997415208 + 997415209.

It is an arithmetic number, because the mean of its divisors is an integer number (997415209).

Almost surely, 2^1994830417 is an apocalyptic number.

It is an amenable number.

1994830417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1994830417 is an equidigital number, since it uses as much as digits as its factorization.

1994830417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 1994830417 is about 44663.5244578840. The cubic root of 1994830417 is about 1258.8345688407.

The spelling of 1994830417 in words is "one billion, nine hundred ninety-four million, eight hundred thirty thousand, four hundred seventeen".