999070823 has 2 divisors, whose sum is σ = 999070824. Its totient is φ = 999070822.

The previous prime is 999070819. The next prime is 999070861. The reversal of 999070823 is 328070999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999070823 - 2² = 999070819 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999070223) 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, 499535411 + 499535412.

It is an arithmetic number, because the mean of its divisors is an integer number (499535412).

Almost surely, 2^999070823 is an apocalyptic number.

999070823 is a deficient number, since it is larger than the sum of its proper divisors (1).

999070823 is an equidigital number, since it uses as much as digits as its factorization.

999070823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 999070823 is about 31608.0816089810. The cubic root of 999070823 is about 999.6901783538.

The spelling of 999070823 in words is "nine hundred ninety-nine million, seventy thousand, eight hundred twenty-three".