343857357 has 6 divisors (see below), whose sum is σ = 496682862. Its totient is φ = 229238232.

The previous prime is 343857341. The next prime is 343857359. The reversal of 343857357 is 753758343.

It can be written as a sum of positive squares in only one way, i.e., 250715556 + 93141801 = 15834^2 + 9651^2 .

It is not a de Polignac number, because 343857357 - 2⁴ = 343857341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343857359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19103178 + ... + 19103195.

It is an arithmetic number, because the mean of its divisors is an integer number (82780477).

Almost surely, 2^343857357 is an apocalyptic number.

It is an amenable number.

343857357 is a deficient number, since it is larger than the sum of its proper divisors (152825505).

343857357 is a wasteful number, since it uses less digits than its factorization.

343857357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38206379 (or 38206376 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 45.

The square root of 343857357 is about 18543.3911947087. The cubic root of 343857357 is about 700.5827507791.

The spelling of 343857357 in words is "three hundred forty-three million, eight hundred fifty-seven thousand, three hundred fifty-seven".