624270247 has 2 divisors, whose sum is σ = 624270248. Its totient is φ = 624270246.

The previous prime is 624270239. The next prime is 624270271. The reversal of 624270247 is 742072426.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 624270247 - 2³ = 624270239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624274247) 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, 312135123 + 312135124.

It is an arithmetic number, because the mean of its divisors is an integer number (312135124).

Almost surely, 2^624270247 is an apocalyptic number.

624270247 is a deficient number, since it is larger than the sum of its proper divisors (1).

624270247 is an equidigital number, since it uses as much as digits as its factorization.

624270247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 624270247 is about 24985.4006771955. The cubic root of 624270247 is about 854.6550810553.

The spelling of 624270247 in words is "six hundred twenty-four million, two hundred seventy thousand, two hundred forty-seven".