994856417 has 2 divisors, whose sum is σ = 994856418. Its totient is φ = 994856416.

The previous prime is 994856413. The next prime is 994856437. The reversal of 994856417 is 714658499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 593214736 + 401641681 = 24356^2 + 20041^2 .

It is an emirp because it is prime and its reverse (714658499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 994856417 - 2² = 994856413 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (994856413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497428208 + 497428209.

It is an arithmetic number, because the mean of its divisors is an integer number (497428209).

Almost surely, 2^994856417 is an apocalyptic number.

It is an amenable number.

994856417 is a deficient number, since it is larger than the sum of its proper divisors (1).

994856417 is an equidigital number, since it uses as much as digits as its factorization.

994856417 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 994856417 is about 31541.3445655064. The cubic root of 994856417 is about 998.2825242992.

The spelling of 994856417 in words is "nine hundred ninety-four million, eight hundred fifty-six thousand, four hundred seventeen".