343825 has 12 divisors (see below), whose sum is σ = 451980. Its totient is φ = 258560.

The previous prime is 343823. The next prime is 343829. The reversal of 343825 is 528343.

It can be written as a sum of positive squares in 6 ways, for example, as 16641 + 327184 = 129^2 + 572^2 .

It is not a de Polignac number, because 343825 - 2¹ = 343823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a d-powerful number, because it can be written as 3⁶ + 4⁹ + 8³ + 3⁷ + 2⁷ + 5⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 343825.

It is not an unprimeable number, because it can be changed into a prime (343823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21 + ... + 829.

It is an arithmetic number, because the mean of its divisors is an integer number (37665).

2³⁴³⁸²⁵ is an apocalyptic number.

It is an amenable number.

343825 is a deficient number, since it is larger than the sum of its proper divisors (108155).

343825 is a wasteful number, since it uses less digits than its factorization.

343825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 831 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 343825 is about 586.3659267045. The cubic root of 343825 is about 70.0560775129.

The spelling of 343825 in words is "three hundred forty-three thousand, eight hundred twenty-five".