449064691 has 2 divisors, whose sum is σ = 449064692. Its totient is φ = 449064690.

The previous prime is 449064647. The next prime is 449064697. The reversal of 449064691 is 196460944.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 449064691 - 2¹³ = 449056499 is a prime.

It is not a weakly prime, because it can be changed into another prime (449064697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224532345 + 224532346.

It is an arithmetic number, because the mean of its divisors is an integer number (224532346).

Almost surely, 2^449064691 is an apocalyptic number.

449064691 is a deficient number, since it is larger than the sum of its proper divisors (1).

449064691 is an equidigital number, since it uses as much as digits as its factorization.

449064691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 449064691 is about 21191.1465239614. The cubic root of 449064691 is about 765.7781485022.

The spelling of 449064691 in words is "four hundred forty-nine million, sixty-four thousand, six hundred ninety-one".