449172811 has 2 divisors, whose sum is σ = 449172812. Its totient is φ = 449172810.

The previous prime is 449172781. The next prime is 449172847. The reversal of 449172811 is 118271944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 449172811 - 2⁷ = 449172683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (449172881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224586405 + 224586406.

It is an arithmetic number, because the mean of its divisors is an integer number (224586406).

Almost surely, 2^449172811 is an apocalyptic number.

449172811 is a deficient number, since it is larger than the sum of its proper divisors (1).

449172811 is an equidigital number, since it uses as much as digits as its factorization.

449172811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 37.

The square root of 449172811 is about 21193.6974357944. The cubic root of 449172811 is about 765.8396016300.

The spelling of 449172811 in words is "four hundred forty-nine million, one hundred seventy-two thousand, eight hundred eleven".