449747117 has 2 divisors, whose sum is σ = 449747118. Its totient is φ = 449747116.

The previous prime is 449747059. The next prime is 449747153. The reversal of 449747117 is 711747944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401040676 + 48706441 = 20026^2 + 6979^2 .

It is a cyclic number.

It is not a de Polignac number, because 449747117 - 2¹⁶ = 449681581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449747197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224873558 + 224873559.

It is an arithmetic number, because the mean of its divisors is an integer number (224873559).

Almost surely, 2^449747117 is an apocalyptic number.

It is an amenable number.

449747117 is a deficient number, since it is larger than the sum of its proper divisors (1).

449747117 is an equidigital number, since it uses as much as digits as its factorization.

449747117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 44.

The square root of 449747117 is about 21207.2420884942. The cubic root of 449747117 is about 766.1658598456.

The spelling of 449747117 in words is "four hundred forty-nine million, seven hundred forty-seven thousand, one hundred seventeen".