345727 has 2 divisors, whose sum is σ = 345728. Its totient is φ = 345726.

The previous prime is 345707. The next prime is 345731. The reversal of 345727 is 727543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345727 - 2⁷ = 345599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345695 and 345704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172863 + 172864.

It is an arithmetic number, because the mean of its divisors is an integer number (172864).

2³⁴⁵⁷²⁷ is an apocalyptic number.

345727 is a deficient number, since it is larger than the sum of its proper divisors (1).

345727 is an equidigital number, since it uses as much as digits as its factorization.

345727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5880, while the sum is 28.

The square root of 345727 is about 587.9855440400. The cubic root of 345727 is about 70.1850207350.

It can be divided in two parts, 3457 and 27, that multiplied together give a palindrome (93339).

The spelling of 345727 in words is "three hundred forty-five thousand, seven hundred twenty-seven".