624429663 has 64 divisors (see below), whose sum is σ = 1005699072. Its totient is φ = 339655680.

The previous prime is 624429539. The next prime is 624429671. The reversal of 624429663 is 366924426.

It is not a de Polignac number, because 624429663 - 2¹² = 624425567 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

Its product of digits (373248) is a multiple of the sum of its prime divisors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624429763) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3977181 + ... + 3977337.

It is an arithmetic number, because the mean of its divisors is an integer number (15714048).

Almost surely, 2^624429663 is an apocalyptic number.

624429663 is a deficient number, since it is larger than the sum of its proper divisors (381269409).

624429663 is a wasteful number, since it uses less digits than its factorization.

624429663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384.

The product of its digits is 373248, while the sum is 42.

The square root of 624429663 is about 24988.5906565376. The cubic root of 624429663 is about 854.7278241765.

The spelling of 624429663 in words is "six hundred twenty-four million, four hundred twenty-nine thousand, six hundred sixty-three".