999412343 has 2 divisors, whose sum is σ = 999412344. Its totient is φ = 999412342.

The previous prime is 999412339. The next prime is 999412357. The reversal of 999412343 is 343214999.

It is a weak prime.

It is an emirp because it is prime and its reverse (343214999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999412343 - 2² = 999412339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999412294 and 999412303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999412313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499706171 + 499706172.

It is an arithmetic number, because the mean of its divisors is an integer number (499706172).

Almost surely, 2^999412343 is an apocalyptic number.

999412343 is a deficient number, since it is larger than the sum of its proper divisors (1).

999412343 is an equidigital number, since it uses as much as digits as its factorization.

999412343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 44.

The square root of 999412343 is about 31613.4835631887. The cubic root of 999412343 is about 999.8040759496.

The spelling of 999412343 in words is "nine hundred ninety-nine million, four hundred twelve thousand, three hundred forty-three".