346891 has 2 divisors, whose sum is σ = 346892. Its totient is φ = 346890.

The previous prime is 346877. The next prime is 346903. The reversal of 346891 is 198643.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 346891 - 2⁷ = 346763 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (346831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173445 + 173446.

It is an arithmetic number, because the mean of its divisors is an integer number (173446).

2³⁴⁶⁸⁹¹ is an apocalyptic number.

346891 is the 373-rd centered pentagonal number.

346891 is a deficient number, since it is larger than the sum of its proper divisors (1).

346891 is an equidigital number, since it uses as much as digits as its factorization.

346891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 346891 is about 588.9745325564. The cubic root of 346891 is about 70.2636992403.

The spelling of 346891 in words is "three hundred forty-six thousand, eight hundred ninety-one".