346934681 has 4 divisors (see below), whose sum is σ = 356311332. Its totient is φ = 337558032.

The previous prime is 346934641. The next prime is 346934689. The reversal of 346934681 is 186439643.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 186439643 = 13 ⋅14341511.

It can be written as a sum of positive squares in 2 ways, for example, as 281065225 + 65869456 = 16765^2 + 8116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346934681 is a prime.

It is a super-2 number, since 2×346934681² = 240727345761143522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (346934689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4688270 + ... + 4688343.

It is an arithmetic number, because the mean of its divisors is an integer number (89077833).

Almost surely, 2^346934681 is an apocalyptic number.

It is an amenable number.

346934681 is a deficient number, since it is larger than the sum of its proper divisors (9376651).

346934681 is an equidigital number, since it uses as much as digits as its factorization.

346934681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9376650.

The product of its digits is 373248, while the sum is 44.

The square root of 346934681 is about 18626.1826738599. The cubic root of 346934681 is about 702.6664835095. Note that the first 3 decimals are identical.

The spelling of 346934681 in words is "three hundred forty-six million, nine hundred thirty-four thousand, six hundred eighty-one".