624000389 has 2 divisors, whose sum is σ = 624000390. Its totient is φ = 624000388.

The previous prime is 624000383. The next prime is 624000397. The reversal of 624000389 is 983000426.

624000389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443313025 + 180687364 = 21055^2 + 13442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-624000389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624000383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312000194 + 312000195.

It is an arithmetic number, because the mean of its divisors is an integer number (312000195).

Almost surely, 2^624000389 is an apocalyptic number.

It is an amenable number.

624000389 is a deficient number, since it is larger than the sum of its proper divisors (1).

624000389 is an equidigital number, since it uses as much as digits as its factorization.

624000389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 624000389 is about 24979.9997798239. Note that the first 3 decimals coincide. The cubic root of 624000389 is about 854.5319139105.

The spelling of 624000389 in words is "six hundred twenty-four million, three hundred eighty-nine", and thus it is an aban number.