450727819 has 2 divisors, whose sum is σ = 450727820. Its totient is φ = 450727818.

The previous prime is 450727813. The next prime is 450727853. The reversal of 450727819 is 918727054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 450727819 - 2²³ = 442339211 is a prime.

It is a super-2 number, since 2×450727819² = 406311133640993522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (450727813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225363909 + 225363910.

It is an arithmetic number, because the mean of its divisors is an integer number (225363910).

Almost surely, 2^450727819 is an apocalyptic number.

450727819 is a deficient number, since it is larger than the sum of its proper divisors (1).

450727819 is an equidigital number, since it uses as much as digits as its factorization.

450727819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 450727819 is about 21230.3513630839. The cubic root of 450727819 is about 766.7223465757.

The spelling of 450727819 in words is "four hundred fifty million, seven hundred twenty-seven thousand, eight hundred nineteen".