450742979 has 2 divisors, whose sum is σ = 450742980. Its totient is φ = 450742978.

The previous prime is 450742961. The next prime is 450742997. The reversal of 450742979 is 979247054.

Together with next prime (450742997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (450742961) and next prime (450742997).

It is a cyclic number.

It is not a de Polignac number, because 450742979 - 2⁸ = 450742723 is a prime.

It is not a weakly prime, because it can be changed into another prime (450742379) 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, 225371489 + 225371490.

It is an arithmetic number, because the mean of its divisors is an integer number (225371490).

Almost surely, 2^450742979 is an apocalyptic number.

450742979 is a deficient number, since it is larger than the sum of its proper divisors (1).

450742979 is an equidigital number, since it uses as much as digits as its factorization.

450742979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 450742979 is about 21230.7083960946. The cubic root of 450742979 is about 766.7309425842.

The spelling of 450742979 in words is "four hundred fifty million, seven hundred forty-two thousand, nine hundred seventy-nine".