633430249 has 2 divisors, whose sum is σ = 633430250. Its totient is φ = 633430248.

The previous prime is 633430247. The next prime is 633430253. The reversal of 633430249 is 942034336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 633428224 + 2025 = 25168^2 + 45^2 .

It is a cyclic number.

It is not a de Polignac number, because 633430249 - 2¹ = 633430247 is a prime.

Together with 633430247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (633430241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316715124 + 316715125.

It is an arithmetic number, because the mean of its divisors is an integer number (316715125).

Almost surely, 2^633430249 is an apocalyptic number.

It is an amenable number.

633430249 is a deficient number, since it is larger than the sum of its proper divisors (1).

633430249 is an equidigital number, since it uses as much as digits as its factorization.

633430249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 633430249 is about 25168.0402296246. The cubic root of 633430249 is about 858.8149574109.

The spelling of 633430249 in words is "six hundred thirty-three million, four hundred thirty thousand, two hundred forty-nine".