344857 has 2 divisors, whose sum is σ = 344858. Its totient is φ = 344856.

The previous prime is 344843. The next prime is 344863. The reversal of 344857 is 758443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309136 + 35721 = 556^2 + 189^2 .

It is a cyclic number.

It is not a de Polignac number, because 344857 - 2¹⁵ = 312089 is a prime.

It is not a weakly prime, because it can be changed into another prime (344807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172428 + 172429.

It is an arithmetic number, because the mean of its divisors is an integer number (172429).

2³⁴⁴⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

344857 is a deficient number, since it is larger than the sum of its proper divisors (1).

344857 is an equidigital number, since it uses as much as digits as its factorization.

344857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 344857 is about 587.2452639230. The cubic root of 344857 is about 70.1260992368.

The spelling of 344857 in words is "three hundred forty-four thousand, eight hundred fifty-seven".