561347 has 2 divisors, whose sum is σ = 561348. Its totient is φ = 561346.

The previous prime is 561343. The next prime is 561359. The reversal of 561347 is 743165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 561347 - 2² = 561343 is a prime.

It is a super-2 number, since 2×561347² = 630220908818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (561343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280673 + 280674.

It is an arithmetic number, because the mean of its divisors is an integer number (280674).

2⁵⁶¹³⁴⁷ is an apocalyptic number.

561347 is a deficient number, since it is larger than the sum of its proper divisors (1).

561347 is an equidigital number, since it uses as much as digits as its factorization.

561347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 26.

The square root of 561347 is about 749.2309390301. The cubic root of 561347 is about 82.4917408322.

The spelling of 561347 in words is "five hundred sixty-one thousand, three hundred forty-seven".