6623237 has 2 divisors, whose sum is σ = 6623238. Its totient is φ = 6623236.

The previous prime is 6623231. The next prime is 6623261. The reversal of 6623237 is 7323266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6558721 + 64516 = 2561^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 6623237 - 2⁶ = 6623173 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 6⁶ + 6⁷ + 2⁵ + 3⁵ + 2⁷ + 3¹² + 7⁸ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6623231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311618 + 3311619.

It is an arithmetic number, because the mean of its divisors is an integer number (3311619).

Almost surely, 2^6623237 is an apocalyptic number.

It is an amenable number.

6623237 is a deficient number, since it is larger than the sum of its proper divisors (1).

6623237 is an equidigital number, since it uses as much as digits as its factorization.

6623237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 29.

The square root of 6623237 is about 2573.5650370643. The cubic root of 6623237 is about 187.7976262788.

Adding to 6623237 its sum of digits (29), we get a palindrome (6623266).

It can be divided in two parts, 6623 and 237, that multiplied together give a palindrome (1569651).

The spelling of 6623237 in words is "six million, six hundred twenty-three thousand, two hundred thirty-seven".