623552 has 14 divisors (see below), whose sum is σ = 1237488. Its totient is φ = 311744.

The previous prime is 623537. The next prime is 623563. The reversal of 623552 is 255326.

It is a happy number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

623552 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 4808 + ... + 4935.

It is an arithmetic number, because the mean of its divisors is an integer number (88392).

2⁶²³⁵⁵² is an apocalyptic number.

It is an amenable number.

623552 is a deficient number, since it is larger than the sum of its proper divisors (613936).

623552 is an equidigital number, since it uses as much as digits as its factorization.

623552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9755 (or 9745 counting only the distinct ones).

The product of its digits is 1800, while the sum is 23.

The square root of 623552 is about 789.6530883876. The cubic root of 623552 is about 85.4327184058.

Adding to 623552 its reverse (255326), we get a palindrome (878878).

The spelling of 623552 in words is "six hundred twenty-three thousand, five hundred fifty-two".