450838979 has 2 divisors, whose sum is σ = 450838980. Its totient is φ = 450838978.

The previous prime is 450838957. The next prime is 450839003. The reversal of 450838979 is 979838054.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450838979 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450838979.

It is not a weakly prime, because it can be changed into another prime (450838579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225419489 + 225419490.

It is an arithmetic number, because the mean of its divisors is an integer number (225419490).

Almost surely, 2^450838979 is an apocalyptic number.

450838979 is a deficient number, since it is larger than the sum of its proper divisors (1).

450838979 is an equidigital number, since it uses as much as digits as its factorization.

450838979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 450838979 is about 21232.9691517696. The cubic root of 450838979 is about 766.7853719367.

The spelling of 450838979 in words is "four hundred fifty million, eight hundred thirty-eight thousand, nine hundred seventy-nine".