346394387 has 2 divisors, whose sum is σ = 346394388. Its totient is φ = 346394386.

The previous prime is 346394383. The next prime is 346394393. The reversal of 346394387 is 783493643.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 346394387 - 2² = 346394383 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (346394383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173197193 + 173197194.

It is an arithmetic number, because the mean of its divisors is an integer number (173197194).

Almost surely, 2^346394387 is an apocalyptic number.

346394387 is a deficient number, since it is larger than the sum of its proper divisors (1).

346394387 is an equidigital number, since it uses as much as digits as its factorization.

346394387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 47.

The square root of 346394387 is about 18611.6734067628. The cubic root of 346394387 is about 702.3015313003.

The spelling of 346394387 in words is "three hundred forty-six million, three hundred ninety-four thousand, three hundred eighty-seven".