623441263 has 4 divisors (see below), whose sum is σ = 624000520. Its totient is φ = 622882008.

The previous prime is 623441261. The next prime is 623441293. The reversal of 623441263 is 362144326.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362144326 = 2 ⋅181072163.

It is a cyclic number.

It is not a de Polignac number, because 623441263 - 2¹ = 623441261 is a prime.

It is a super-2 number, since 2×623441263² = 777358016822070338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623441261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277953 + ... + 280186.

It is an arithmetic number, because the mean of its divisors is an integer number (156000130).

Almost surely, 2^623441263 is an apocalyptic number.

623441263 is a deficient number, since it is larger than the sum of its proper divisors (559257).

623441263 is a wasteful number, since it uses less digits than its factorization.

623441263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559256.

The product of its digits is 20736, while the sum is 31.

The square root of 623441263 is about 24968.8057984358. The cubic root of 623441263 is about 854.2766075591.

Adding to 623441263 its reverse (362144326), we get a palindrome (985585589).

The spelling of 623441263 in words is "six hundred twenty-three million, four hundred forty-one thousand, two hundred sixty-three".