343646425 has 6 divisors (see below), whose sum is σ = 426121598. Its totient is φ = 274917120.

The previous prime is 343646423. The next prime is 343646431. The reversal of 343646425 is 524646343.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 39388176 + 304258249 = 6276^2 + 17443^2 .

It is not a de Polignac number, because 343646425 - 2¹ = 343646423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343646423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6872904 + ... + 6872953.

Almost surely, 2^343646425 is an apocalyptic number.

It is an amenable number.

343646425 is a deficient number, since it is larger than the sum of its proper divisors (82475173).

343646425 is a wasteful number, since it uses less digits than its factorization.

343646425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13745867 (or 13745862 counting only the distinct ones).

The product of its digits is 207360, while the sum is 37.

The square root of 343646425 is about 18537.7027972724. The cubic root of 343646425 is about 700.4394689360.

The spelling of 343646425 in words is "three hundred forty-three million, six hundred forty-six thousand, four hundred twenty-five".