6623459 has 2 divisors, whose sum is σ = 6623460. Its totient is φ = 6623458.

The previous prime is 6623423. The next prime is 6623467. The reversal of 6623459 is 9543266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6623459 - 2⁸ = 6623203 is a prime.

It is not a weakly prime, because it can be changed into another prime (6623059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311729 + 3311730.

It is an arithmetic number, because the mean of its divisors is an integer number (3311730).

Almost surely, 2^6623459 is an apocalyptic number.

6623459 is a deficient number, since it is larger than the sum of its proper divisors (1).

6623459 is an equidigital number, since it uses as much as digits as its factorization.

6623459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The square root of 6623459 is about 2573.6081675344. The cubic root of 6623459 is about 187.7997244778.

The spelling of 6623459 in words is "six million, six hundred twenty-three thousand, four hundred fifty-nine".