346085561 has 4 divisors (see below), whose sum is σ = 346164624. Its totient is φ = 346006500.

The previous prime is 346085557. The next prime is 346085567. The reversal of 346085561 is 165580643.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 165580643 = 619 ⋅267497.

It is a cyclic number.

It is not a de Polignac number, because 346085561 - 2² = 346085557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346085567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32555 + ... + 41856.

It is an arithmetic number, because the mean of its divisors is an integer number (86541156).

Almost surely, 2^346085561 is an apocalyptic number.

It is an amenable number.

346085561 is a deficient number, since it is larger than the sum of its proper divisors (79063).

346085561 is an equidigital number, since it uses as much as digits as its factorization.

346085561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79062.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 346085561 is about 18603.3749895012. The cubic root of 346085561 is about 702.0927582291.

The spelling of 346085561 in words is "three hundred forty-six million, eighty-five thousand, five hundred sixty-one".