343870361 has 4 divisors (see below), whose sum is σ = 344844852. Its totient is φ = 342895872.

The previous prime is 343870343. The next prime is 343870363. The reversal of 343870361 is 163078343.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183087961 + 160782400 = 13531^2 + 12680^2 .

It is a cyclic number.

It is not a de Polignac number, because 343870361 - 2⁶ = 343870297 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (343870363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486716 + ... + 487421.

It is an arithmetic number, because the mean of its divisors is an integer number (86211213).

Almost surely, 2^343870361 is an apocalyptic number.

It is an amenable number.

343870361 is a deficient number, since it is larger than the sum of its proper divisors (974491).

343870361 is an equidigital number, since it uses as much as digits as its factorization.

343870361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974490.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 343870361 is about 18543.7418284444. The cubic root of 343870361 is about 700.5915822156.

The spelling of 343870361 in words is "three hundred forty-three million, eight hundred seventy thousand, three hundred sixty-one".