449779933 has 2 divisors, whose sum is σ = 449779934. Its totient is φ = 449779932.

The previous prime is 449779921. The next prime is 449779997. The reversal of 449779933 is 339977944.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 433763929 + 16016004 = 20827^2 + 4002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449779933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449779903) 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, 224889966 + 224889967.

It is an arithmetic number, because the mean of its divisors is an integer number (224889967).

Almost surely, 2^449779933 is an apocalyptic number.

It is an amenable number.

449779933 is a deficient number, since it is larger than the sum of its proper divisors (1).

449779933 is an equidigital number, since it uses as much as digits as its factorization.

449779933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5143824, while the sum is 55.

The square root of 449779933 is about 21208.0157723442. The cubic root of 449779933 is about 766.1844939375.

The spelling of 449779933 in words is "four hundred forty-nine million, seven hundred seventy-nine thousand, nine hundred thirty-three".