624797249 has 2 divisors, whose sum is σ = 624797250. Its totient is φ = 624797248.

The previous prime is 624797233. The next prime is 624797263. The reversal of 624797249 is 942797426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 603930625 + 20866624 = 24575^2 + 4568^2 .

It is a cyclic number.

It is not a de Polignac number, because 624797249 - 2⁴ = 624797233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 624797197 and 624797206.

It is not a weakly prime, because it can be changed into another prime (624797269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312398624 + 312398625.

It is an arithmetic number, because the mean of its divisors is an integer number (312398625).

Almost surely, 2^624797249 is an apocalyptic number.

It is an amenable number.

624797249 is a deficient number, since it is larger than the sum of its proper divisors (1).

624797249 is an equidigital number, since it uses as much as digits as its factorization.

624797249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 50.

The square root of 624797249 is about 24995.9446510829. The cubic root of 624797249 is about 854.8955101837.

The spelling of 624797249 in words is "six hundred twenty-four million, seven hundred ninety-seven thousand, two hundred forty-nine".