346868647 has 2 divisors, whose sum is σ = 346868648. Its totient is φ = 346868646.

The previous prime is 346868567. The next prime is 346868677. The reversal of 346868647 is 746868643.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 346868647 - 2¹¹ = 346866599 is a prime.

It is a super-2 number, since 2×346868647² = 240635716543221218, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 346868594 and 346868603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346868677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173434323 + 173434324.

It is an arithmetic number, because the mean of its divisors is an integer number (173434324).

Almost surely, 2^346868647 is an apocalyptic number.

346868647 is a deficient number, since it is larger than the sum of its proper divisors (1).

346868647 is an equidigital number, since it uses as much as digits as its factorization.

346868647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 52.

The square root of 346868647 is about 18624.4099772315. The cubic root of 346868647 is about 702.6218998791.

The spelling of 346868647 in words is "three hundred forty-six million, eight hundred sixty-eight thousand, six hundred forty-seven".