6744889 has 2 divisors, whose sum is σ = 6744890. Its totient is φ = 6744888.

The previous prime is 6744847. The next prime is 6744893. The reversal of 6744889 is 9884476.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6335289 + 409600 = 2517^2 + 640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6744889 is a prime.

It is not a weakly prime, because it can be changed into another prime (6744289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3372444 + 3372445.

It is an arithmetic number, because the mean of its divisors is an integer number (3372445).

Almost surely, 2^6744889 is an apocalyptic number.

It is an amenable number.

6744889 is a deficient number, since it is larger than the sum of its proper divisors (1).

6744889 is an equidigital number, since it uses as much as digits as its factorization.

6744889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 46.

The square root of 6744889 is about 2597.0924126800. The cubic root of 6744889 is about 188.9404457623.

The spelling of 6744889 in words is "six million, seven hundred forty-four thousand, eight hundred eighty-nine".