703561 has 2 divisors, whose sum is σ = 703562. Its totient is φ = 703560.

The previous prime is 703559. The next prime is 703631. The reversal of 703561 is 165307.

703561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 585225 + 118336 = 765^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 703561 - 2¹ = 703559 is a prime.

Together with 703559, it forms a pair of twin primes.

It is equal to p₅₆₈₁₂ and since 703561 and 56812 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (703531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 351780 + 351781.

It is an arithmetic number, because the mean of its divisors is an integer number (351781).

2⁷⁰³⁵⁶¹ is an apocalyptic number.

It is an amenable number.

703561 is a deficient number, since it is larger than the sum of its proper divisors (1).

703561 is an equidigital number, since it uses as much as digits as its factorization.

703561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 703561 is about 838.7854314424. The cubic root of 703561 is about 88.9407087313.

Adding to 703561 its reverse (165307), we get a palindrome (868868).

The spelling of 703561 in words is "seven hundred three thousand, five hundred sixty-one".