624423613 has 8 divisors (see below), whose sum is σ = 687440160. Its totient is φ = 562448880.

The previous prime is 624423601. The next prime is 624423637. The reversal of 624423613 is 316324426.

It is the 10202-nd star number.

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 624423613 - 2⁹ = 624423101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624421613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259195 + ... + 261592.

It is an arithmetic number, because the mean of its divisors is an integer number (85930020).

Almost surely, 2^624423613 is an apocalyptic number.

It is an amenable number.

624423613 is a deficient number, since it is larger than the sum of its proper divisors (63016547).

624423613 is a wasteful number, since it uses less digits than its factorization.

624423613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520907.

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

The square root of 624423613 is about 24988.4696009980. The cubic root of 624423613 is about 854.7250637268.

The spelling of 624423613 in words is "six hundred twenty-four million, four hundred twenty-three thousand, six hundred thirteen".