346648447 has 2 divisors, whose sum is σ = 346648448. Its totient is φ = 346648446.

The previous prime is 346648441. The next prime is 346648451. The reversal of 346648447 is 744846643.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 346648447 - 2¹⁵ = 346615679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 346648397 and 346648406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346648441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173324223 + 173324224.

It is an arithmetic number, because the mean of its divisors is an integer number (173324224).

Almost surely, 2^346648447 is an apocalyptic number.

346648447 is a deficient number, since it is larger than the sum of its proper divisors (1).

346648447 is an equidigital number, since it uses as much as digits as its factorization.

346648447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1548288, while the sum is 46.

The square root of 346648447 is about 18618.4974420601. The cubic root of 346648447 is about 702.4731883571.

It can be divided in two parts, 34 and 6648447, that added together give a triangular number (6648481 = T₃₆₄₆).

The spelling of 346648447 in words is "three hundred forty-six million, six hundred forty-eight thousand, four hundred forty-seven".