345768757 has 2 divisors, whose sum is σ = 345768758. Its totient is φ = 345768756.

The previous prime is 345768727. The next prime is 345768781. The reversal of 345768757 is 757867543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196953156 + 148815601 = 14034^2 + 12199^2 .

It is a cyclic number.

It is not a de Polignac number, because 345768757 - 2²³ = 337380149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345768727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172884378 + 172884379.

It is an arithmetic number, because the mean of its divisors is an integer number (172884379).

Almost surely, 2^345768757 is an apocalyptic number.

It is an amenable number.

345768757 is a deficient number, since it is larger than the sum of its proper divisors (1).

345768757 is an equidigital number, since it uses as much as digits as its factorization.

345768757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4939200, while the sum is 52.

The square root of 345768757 is about 18594.8583484790. The cubic root of 345768757 is about 701.8784627651.

The spelling of 345768757 in words is "three hundred forty-five million, seven hundred sixty-eight thousand, seven hundred fifty-seven".