6672389 has 2 divisors, whose sum is σ = 6672390. Its totient is φ = 6672388.

The previous prime is 6672359. The next prime is 6672397. The reversal of 6672389 is 9832766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6477025 + 195364 = 2545^2 + 442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6672389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6672319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3336194 + 3336195.

It is an arithmetic number, because the mean of its divisors is an integer number (3336195).

Almost surely, 2^6672389 is an apocalyptic number.

It is an amenable number.

6672389 is a deficient number, since it is larger than the sum of its proper divisors (1).

6672389 is an equidigital number, since it uses as much as digits as its factorization.

6672389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 6672389 is about 2583.0967848689. The cubic root of 6672389 is about 188.2610395947.

The spelling of 6672389 in words is "six million, six hundred seventy-two thousand, three hundred eighty-nine".