624398663 has 8 divisors (see below), whose sum is σ = 714065280. Its totient is φ = 534848760.

The previous prime is 624398647. The next prime is 624398701. The reversal of 624398663 is 366893426.

It is a happy number.

624398663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 624398663 - 2⁴ = 624398647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624395663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17393 + ... + 39386.

It is an arithmetic number, because the mean of its divisors is an integer number (89258160).

Almost surely, 2^624398663 is an apocalyptic number.

624398663 is a deficient number, since it is larger than the sum of its proper divisors (89666617).

624398663 is a wasteful number, since it uses less digits than its factorization.

624398663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58357.

The product of its digits is 1119744, while the sum is 47.

The square root of 624398663 is about 24987.9703657580. The cubic root of 624398663 is about 854.7136795350.

The spelling of 624398663 in words is "six hundred twenty-four million, three hundred ninety-eight thousand, six hundred sixty-three".