994936819 has 2 divisors, whose sum is σ = 994936820. Its totient is φ = 994936818.

The previous prime is 994936769. The next prime is 994936837. The reversal of 994936819 is 918639499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 994936819 - 2⁹ = 994936307 is a prime.

It is a super-2 number, since 2×994936819² = 1979798547603677522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (994936879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497468409 + 497468410.

It is an arithmetic number, because the mean of its divisors is an integer number (497468410).

Almost surely, 2^994936819 is an apocalyptic number.

994936819 is a deficient number, since it is larger than the sum of its proper divisors (1).

994936819 is an equidigital number, since it uses as much as digits as its factorization.

994936819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3779136, while the sum is 58.

The square root of 994936819 is about 31542.6190890991. The cubic root of 994936819 is about 998.3094165382.

The spelling of 994936819 in words is "nine hundred ninety-four million, nine hundred thirty-six thousand, eight hundred nineteen".