343819823 has 2 divisors, whose sum is σ = 343819824. Its totient is φ = 343819822.

The previous prime is 343819807. The next prime is 343819841. The reversal of 343819823 is 328918343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343819823 - 2⁴ = 343819807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343819423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171909911 + 171909912.

It is an arithmetic number, because the mean of its divisors is an integer number (171909912).

Almost surely, 2^343819823 is an apocalyptic number.

343819823 is a deficient number, since it is larger than the sum of its proper divisors (1).

343819823 is an equidigital number, since it uses as much as digits as its factorization.

343819823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 343819823 is about 18542.3791084100. The cubic root of 343819823 is about 700.5572589783.

The spelling of 343819823 in words is "three hundred forty-three million, eight hundred nineteen thousand, eight hundred twenty-three".