6673861 has 2 divisors, whose sum is σ = 6673862. Its totient is φ = 6673860.

The previous prime is 6673847. The next prime is 6673867. The reversal of 6673861 is 1683766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4730625 + 1943236 = 2175^2 + 1394^2 .

It is a cyclic number.

It is not a de Polignac number, because 6673861 - 2¹³ = 6665669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6673861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6673867) 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 as a sum of consecutive naturals, namely, 3336930 + 3336931.

It is an arithmetic number, because the mean of its divisors is an integer number (3336931).

Almost surely, 2^6673861 is an apocalyptic number.

It is an amenable number.

6673861 is a deficient number, since it is larger than the sum of its proper divisors (1).

6673861 is an equidigital number, since it uses as much as digits as its factorization.

6673861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 6673861 is about 2583.3816984720. The cubic root of 6673861 is about 188.2748827062.

The spelling of 6673861 in words is "six million, six hundred seventy-three thousand, eight hundred sixty-one".