450627979 has 2 divisors, whose sum is σ = 450627980. Its totient is φ = 450627978.

The previous prime is 450627977. The next prime is 450628021. The reversal of 450627979 is 979726054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 450627979 - 2¹ = 450627977 is a prime.

Together with 450627977, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (450627971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225313989 + 225313990.

It is an arithmetic number, because the mean of its divisors is an integer number (225313990).

Almost surely, 2^450627979 is an apocalyptic number.

450627979 is a deficient number, since it is larger than the sum of its proper divisors (1).

450627979 is an equidigital number, since it uses as much as digits as its factorization.

450627979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 450627979 is about 21227.9998822310. Note that the first 3 decimals coincide. The cubic root of 450627979 is about 766.6657305807.

The spelling of 450627979 in words is "four hundred fifty million, six hundred twenty-seven thousand, nine hundred seventy-nine".