346853681 has 2 divisors, whose sum is σ = 346853682. Its totient is φ = 346853680.

The previous prime is 346853657. The next prime is 346853701. The reversal of 346853681 is 186358643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260661025 + 86192656 = 16145^2 + 9284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346853681 is a prime.

It is a super-2 number, since 2×346853681² = 240614952046499522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (346853621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173426840 + 173426841.

It is an arithmetic number, because the mean of its divisors is an integer number (173426841).

Almost surely, 2^346853681 is an apocalyptic number.

It is an amenable number.

346853681 is a deficient number, since it is larger than the sum of its proper divisors (1).

346853681 is an equidigital number, since it uses as much as digits as its factorization.

346853681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 44.

The square root of 346853681 is about 18624.0081883573. The cubic root of 346853681 is about 702.6117946220.

The spelling of 346853681 in words is "three hundred forty-six million, eight hundred fifty-three thousand, six hundred eighty-one".