6623005489 has 2 divisors, whose sum is σ = 6623005490. Its totient is φ = 6623005488.

The previous prime is 6623005463. The next prime is 6623005507. The reversal of 6623005489 is 9845003266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6434767089 + 188238400 = 80217^2 + 13720^2 .

It is a cyclic number.

It is not a de Polignac number, because 6623005489 - 2⁹ = 6623004977 is a prime.

It is not a weakly prime, because it can be changed into another prime (6623005289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311502744 + 3311502745.

It is an arithmetic number, because the mean of its divisors is an integer number (3311502745).

Almost surely, 2^6623005489 is an apocalyptic number.

It is an amenable number.

6623005489 is a deficient number, since it is larger than the sum of its proper divisors (1).

6623005489 is an equidigital number, since it uses as much as digits as its factorization.

6623005489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 6623005489 is about 81381.8498745267. The cubic root of 6623005489 is about 1877.9543813817.

The spelling of 6623005489 in words is "six billion, six hundred twenty-three million, five thousand, four hundred eighty-nine".