6634423 has 2 divisors, whose sum is σ = 6634424. Its totient is φ = 6634422.

The previous prime is 6634391. The next prime is 6634429. The reversal of 6634423 is 3244366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6634423 - 2⁵ = 6634391 is a prime.

It is equal to p₄₅₃₃₄₉ and since 6634423 and 453349 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 6634391 and 6634400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6634429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3317211 + 3317212.

It is an arithmetic number, because the mean of its divisors is an integer number (3317212).

Almost surely, 2^6634423 is an apocalyptic number.

6634423 is a deficient number, since it is larger than the sum of its proper divisors (1).

6634423 is an equidigital number, since it uses as much as digits as its factorization.

6634423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 28.

The square root of 6634423 is about 2575.7373701525. The cubic root of 6634423 is about 187.9032907612.

Adding to 6634423 its reverse (3244366), we get a palindrome (9878789).

The spelling of 6634423 in words is "six million, six hundred thirty-four thousand, four hundred twenty-three".