343140827 has 2 divisors, whose sum is σ = 343140828. Its totient is φ = 343140826.

The previous prime is 343140803. The next prime is 343140839. The reversal of 343140827 is 728041343.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 343140827 - 2²⁰ = 342092251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 343140793 and 343140802.

It is not a weakly prime, because it can be changed into another prime (343140857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171570413 + 171570414.

It is an arithmetic number, because the mean of its divisors is an integer number (171570414).

Almost surely, 2^343140827 is an apocalyptic number.

343140827 is a deficient number, since it is larger than the sum of its proper divisors (1).

343140827 is an equidigital number, since it uses as much as digits as its factorization.

343140827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 343140827 is about 18524.0607589157. The cubic root of 343140827 is about 700.0957875722.

The spelling of 343140827 in words is "three hundred forty-three million, one hundred forty thousand, eight hundred twenty-seven".