3561673 has 2 divisors, whose sum is σ = 3561674. Its totient is φ = 3561672.

The previous prime is 3561671. The next prime is 3561689. The reversal of 3561673 is 3761653.

3561673 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., 3429904 + 131769 = 1852^2 + 363^2 .

It is a cyclic number.

It is not a de Polignac number, because 3561673 - 2¹ = 3561671 is a prime.

Together with 3561671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3561671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780836 + 1780837.

It is an arithmetic number, because the mean of its divisors is an integer number (1780837).

Almost surely, 2^3561673 is an apocalyptic number.

It is an amenable number.

3561673 is a deficient number, since it is larger than the sum of its proper divisors (1).

3561673 is an equidigital number, since it uses as much as digits as its factorization.

3561673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 31.

The square root of 3561673 is about 1887.2395184502. The cubic root of 3561673 is about 152.7160495923.

The spelling of 3561673 in words is "three million, five hundred sixty-one thousand, six hundred seventy-three".