343797823 has 2 divisors, whose sum is σ = 343797824. Its totient is φ = 343797822.

The previous prime is 343797743. The next prime is 343797863. The reversal of 343797823 is 328797343.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343797823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343797863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171898911 + 171898912.

It is an arithmetic number, because the mean of its divisors is an integer number (171898912).

Almost surely, 2^343797823 is an apocalyptic number.

343797823 is a deficient number, since it is larger than the sum of its proper divisors (1).

343797823 is an equidigital number, since it uses as much as digits as its factorization.

343797823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 46.

The square root of 343797823 is about 18541.7858632873. The cubic root of 343797823 is about 700.5423164731.

The spelling of 343797823 in words is "three hundred forty-three million, seven hundred ninety-seven thousand, eight hundred twenty-three".