624340841 has 2 divisors, whose sum is σ = 624340842. Its totient is φ = 624340840.

The previous prime is 624340799. The next prime is 624340853. The reversal of 624340841 is 148043426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 585640000 + 38700841 = 24200^2 + 6221^2 .

It is a cyclic number.

It is not a de Polignac number, because 624340841 - 2¹⁰ = 624339817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 624340798 and 624340807.

It is not a weakly prime, because it can be changed into another prime (624340441) 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, 312170420 + 312170421.

It is an arithmetic number, because the mean of its divisors is an integer number (312170421).

Almost surely, 2^624340841 is an apocalyptic number.

It is an amenable number.

624340841 is a deficient number, since it is larger than the sum of its proper divisors (1).

624340841 is an equidigital number, since it uses as much as digits as its factorization.

624340841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 624340841 is about 24986.8133422411. The cubic root of 624340841 is about 854.6872953338.

The spelling of 624340841 in words is "six hundred twenty-four million, three hundred forty thousand, eight hundred forty-one".