347900029 has 2 divisors, whose sum is σ = 347900030. Its totient is φ = 347900028.

The previous prime is 347899961. The next prime is 347900039. The reversal of 347900029 is 920009743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 347263225 + 636804 = 18635^2 + 798^2 .

It is an emirp because it is prime and its reverse (920009743) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 347900029 - 2⁷ = 347899901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 347899967 and 347900003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (347900039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173950014 + 173950015.

It is an arithmetic number, because the mean of its divisors is an integer number (173950015).

Almost surely, 2^347900029 is an apocalyptic number.

It is an amenable number.

347900029 is a deficient number, since it is larger than the sum of its proper divisors (1).

347900029 is an equidigital number, since it uses as much as digits as its factorization.

347900029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 347900029 is about 18652.0784096572. The cubic root of 347900029 is about 703.3176046486.

The spelling of 347900029 in words is "three hundred forty-seven million, nine hundred thousand, twenty-nine".