346436729 has 2 divisors, whose sum is σ = 346436730. Its totient is φ = 346436728.

The previous prime is 346436719. The next prime is 346436759. The reversal of 346436729 is 927634643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211760704 + 134676025 = 14552^2 + 11605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346436729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 346436729.

It is not a weakly prime, because it can be changed into another prime (346436719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173218364 + 173218365.

It is an arithmetic number, because the mean of its divisors is an integer number (173218365).

Almost surely, 2^346436729 is an apocalyptic number.

It is an amenable number.

346436729 is a deficient number, since it is larger than the sum of its proper divisors (1).

346436729 is an equidigital number, since it uses as much as digits as its factorization.

346436729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 44.

The square root of 346436729 is about 18612.8108839047. The cubic root of 346436729 is about 702.3301457361.

The spelling of 346436729 in words is "three hundred forty-six million, four hundred thirty-six thousand, seven hundred twenty-nine".