624030397 has 2 divisors, whose sum is σ = 624030398. Its totient is φ = 624030396.

The previous prime is 624030371. The next prime is 624030461. The reversal of 624030397 is 793030426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 418366116 + 205664281 = 20454^2 + 14341^2 .

It is a cyclic number.

It is not a de Polignac number, because 624030397 - 2⁷ = 624030269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624030307) 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 as a sum of consecutive naturals, namely, 312015198 + 312015199.

It is an arithmetic number, because the mean of its divisors is an integer number (312015199).

Almost surely, 2^624030397 is an apocalyptic number.

It is an amenable number.

624030397 is a deficient number, since it is larger than the sum of its proper divisors (1).

624030397 is an equidigital number, since it uses as much as digits as its factorization.

624030397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 624030397 is about 24980.6004131206. The cubic root of 624030397 is about 854.5456117559.

The spelling of 624030397 in words is "six hundred twenty-four million, thirty thousand, three hundred ninety-seven".