999996919 has 2 divisors, whose sum is σ = 999996920. Its totient is φ = 999996918.

The previous prime is 999996913. The next prime is 999996983. The reversal of 999996919 is 919699999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999996919 - 2⁹ = 999996407 is a prime.

It is a super-2 number, since 2×999996919² = 1999987676018985122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999996913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499998459 + 499998460.

It is an arithmetic number, because the mean of its divisors is an integer number (499998460).

Almost surely, 2^999996919 is an apocalyptic number.

999996919 is a deficient number, since it is larger than the sum of its proper divisors (1).

999996919 is an equidigital number, since it uses as much as digits as its factorization.

999996919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28697814, while the sum is 70.

The square root of 999996919 is about 31622.7278867589. The cubic root of 999996919 is about 999.9989729989.

The spelling of 999996919 in words is "nine hundred ninety-nine million, nine hundred ninety-six thousand, nine hundred nineteen".