345726307 has 2 divisors, whose sum is σ = 345726308. Its totient is φ = 345726306.

The previous prime is 345726301. The next prime is 345726323. The reversal of 345726307 is 703627543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345726307 - 2²⁷ = 211508579 is a prime.

It is not a weakly prime, because it can be changed into another prime (345726301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172863153 + 172863154.

It is an arithmetic number, because the mean of its divisors is an integer number (172863154).

Almost surely, 2^345726307 is an apocalyptic number.

345726307 is a deficient number, since it is larger than the sum of its proper divisors (1).

345726307 is an equidigital number, since it uses as much as digits as its factorization.

345726307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 37.

The square root of 345726307 is about 18593.7168688780. The cubic root of 345726307 is about 701.8497384038.

The spelling of 345726307 in words is "three hundred forty-five million, seven hundred twenty-six thousand, three hundred seven".