346221383 has 2 divisors, whose sum is σ = 346221384. Its totient is φ = 346221382.

The previous prime is 346221311. The next prime is 346221397. The reversal of 346221383 is 383122643.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 346221383 - 2²² = 342027079 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346221283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173110691 + 173110692.

It is an arithmetic number, because the mean of its divisors is an integer number (173110692).

Almost surely, 2^346221383 is an apocalyptic number.

346221383 is a deficient number, since it is larger than the sum of its proper divisors (1).

346221383 is an equidigital number, since it uses as much as digits as its factorization.

346221383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 32.

The square root of 346221383 is about 18607.0250980644. The cubic root of 346221383 is about 702.1845921389.

The spelling of 346221383 in words is "three hundred forty-six million, two hundred twenty-one thousand, three hundred eighty-three".