345392869 has 2 divisors, whose sum is σ = 345392870. Its totient is φ = 345392868.

The previous prime is 345392867. The next prime is 345392923. The reversal of 345392869 is 968293543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272085025 + 73307844 = 16495^2 + 8562^2 .

It is a cyclic number.

It is not a de Polignac number, because 345392869 - 2¹ = 345392867 is a prime.

It is a super-2 number, since 2×345392869² = 238592467912102322, which contains 22 as substring.

Together with 345392867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345392867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172696434 + 172696435.

It is an arithmetic number, because the mean of its divisors is an integer number (172696435).

Almost surely, 2^345392869 is an apocalyptic number.

It is an amenable number.

345392869 is a deficient number, since it is larger than the sum of its proper divisors (1).

345392869 is an equidigital number, since it uses as much as digits as its factorization.

345392869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 49.

The square root of 345392869 is about 18584.7482899285. The cubic root of 345392869 is about 701.6240313017.

The spelling of 345392869 in words is "three hundred forty-five million, three hundred ninety-two thousand, eight hundred sixty-nine".