343078783 has 2 divisors, whose sum is σ = 343078784. Its totient is φ = 343078782.

The previous prime is 343078781. The next prime is 343078831. The reversal of 343078783 is 387870343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343078783 - 2¹ = 343078781 is a prime.

It is a super-2 number, since 2×343078783² = 235406102689522178, which contains 22 as substring.

Together with 343078781, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343078781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171539391 + 171539392.

It is an arithmetic number, because the mean of its divisors is an integer number (171539392).

Almost surely, 2^343078783 is an apocalyptic number.

343078783 is a deficient number, since it is larger than the sum of its proper divisors (1).

343078783 is an equidigital number, since it uses as much as digits as its factorization.

343078783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 343078783 is about 18522.3859964099. The cubic root of 343078783 is about 700.0535897748.

The spelling of 343078783 in words is "three hundred forty-three million, seventy-eight thousand, seven hundred eighty-three".