343512973 has 2 divisors, whose sum is σ = 343512974. Its totient is φ = 343512972.

The previous prime is 343512943. The next prime is 343512977. The reversal of 343512973 is 379215343.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307055529 + 36457444 = 17523^2 + 6038^2 .

It is a cyclic number.

It is not a de Polignac number, because 343512973 - 2²⁵ = 309958541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343512977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171756486 + 171756487.

It is an arithmetic number, because the mean of its divisors is an integer number (171756487).

Almost surely, 2^343512973 is an apocalyptic number.

It is an amenable number.

343512973 is a deficient number, since it is larger than the sum of its proper divisors (1).

343512973 is an equidigital number, since it uses as much as digits as its factorization.

343512973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 37.

The square root of 343512973 is about 18534.1029726286. The cubic root of 343512973 is about 700.3487874061.

The spelling of 343512973 in words is "three hundred forty-three million, five hundred twelve thousand, nine hundred seventy-three".