346447 has 2 divisors, whose sum is σ = 346448. Its totient is φ = 346446.

The previous prime is 346441. The next prime is 346453. The reversal of 346447 is 744643.

It is a balanced prime because it is at equal distance from previous prime (346441) and next prime (346453).

It is a cyclic number.

It is not a de Polignac number, because 346447 - 2³ = 346439 is a prime.

346447 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173223 + 173224.

It is an arithmetic number, because the mean of its divisors is an integer number (173224).

2³⁴⁶⁴⁴⁷ is an apocalyptic number.

346447 is a deficient number, since it is larger than the sum of its proper divisors (1).

346447 is an equidigital number, since it uses as much as digits as its factorization.

346447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 28.

The square root of 346447 is about 588.5974855536. The cubic root of 346447 is about 70.2337086457.

The spelling of 346447 in words is "three hundred forty-six thousand, four hundred forty-seven".