999070819 has 2 divisors, whose sum is σ = 999070820. Its totient is φ = 999070818.

The previous prime is 999070789. The next prime is 999070823. The reversal of 999070819 is 918070999.

It is a strong prime.

It is an emirp because it is prime and its reverse (918070999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999070819 - 2¹³ = 999062627 is a prime.

It is a super-2 number, since 2×999070819² = 1996285002754661522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (999073819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499535409 + 499535410.

It is an arithmetic number, because the mean of its divisors is an integer number (499535410).

Almost surely, 2^999070819 is an apocalyptic number.

999070819 is a deficient number, since it is larger than the sum of its proper divisors (1).

999070819 is an equidigital number, since it uses as much as digits as its factorization.

999070819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 52.

The square root of 999070819 is about 31608.0815457060. The cubic root of 999070819 is about 999.6901770196.

The spelling of 999070819 in words is "nine hundred ninety-nine million, seventy thousand, eight hundred nineteen".