345716629 has 2 divisors, whose sum is σ = 345716630. Its totient is φ = 345716628.

The previous prime is 345716617. The next prime is 345716653. The reversal of 345716629 is 926617543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246176100 + 99540529 = 15690^2 + 9977^2 .

It is a cyclic number.

It is not a de Polignac number, because 345716629 - 2⁹ = 345716117 is a prime.

It is equal to p_18585736 and since 345716629 and 18585736 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345716659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172858314 + 172858315.

It is an arithmetic number, because the mean of its divisors is an integer number (172858315).

Almost surely, 2^345716629 is an apocalyptic number.

It is an amenable number.

345716629 is a deficient number, since it is larger than the sum of its proper divisors (1).

345716629 is an equidigital number, since it uses as much as digits as its factorization.

345716629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 345716629 is about 18593.4566178535. The cubic root of 345716629 is about 701.8431893262.

The spelling of 345716629 in words is "three hundred forty-five million, seven hundred sixteen thousand, six hundred twenty-nine".