345456697 has 2 divisors, whose sum is σ = 345456698. Its totient is φ = 345456696.

The previous prime is 345456641. The next prime is 345456739. The reversal of 345456697 is 796654543.

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., 337861161 + 7595536 = 18381^2 + 2756^2 .

It is an emirp because it is prime and its reverse (796654543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345456697 - 2⁷ = 345456569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345456697.

It is not a weakly prime, because it can be changed into another prime (345456997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172728348 + 172728349.

It is an arithmetic number, because the mean of its divisors is an integer number (172728349).

Almost surely, 2^345456697 is an apocalyptic number.

It is an amenable number.

345456697 is a deficient number, since it is larger than the sum of its proper divisors (1).

345456697 is an equidigital number, since it uses as much as digits as its factorization.

345456697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 49.

The square root of 345456697 is about 18586.4654251420. The cubic root of 345456697 is about 701.6672482723.

The spelling of 345456697 in words is "three hundred forty-five million, four hundred fifty-six thousand, six hundred ninety-seven".