624687379 has 2 divisors, whose sum is σ = 624687380. Its totient is φ = 624687378.

The previous prime is 624687361. The next prime is 624687403. The reversal of 624687379 is 973786426.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 624687379 - 2⁷ = 624687251 is a prime.

It is not a weakly prime, because it can be changed into another prime (624687179) 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, 312343689 + 312343690.

It is an arithmetic number, because the mean of its divisors is an integer number (312343690).

Almost surely, 2^624687379 is an apocalyptic number.

624687379 is a deficient number, since it is larger than the sum of its proper divisors (1).

624687379 is an equidigital number, since it uses as much as digits as its factorization.

624687379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 52.

The square root of 624687379 is about 24993.7467979493. The cubic root of 624687379 is about 854.8453963929.

The spelling of 624687379 in words is "six hundred twenty-four million, six hundred eighty-seven thousand, three hundred seventy-nine".