448991731 has 2 divisors, whose sum is σ = 448991732. Its totient is φ = 448991730.

The previous prime is 448991701. The next prime is 448991747. The reversal of 448991731 is 137199844.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 448991731 - 2⁹ = 448991219 is a prime.

It is a super-2 number, since 2×448991731² = 403187149012752722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (448991701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224495865 + 224495866.

It is an arithmetic number, because the mean of its divisors is an integer number (224495866).

Almost surely, 2^448991731 is an apocalyptic number.

448991731 is a deficient number, since it is larger than the sum of its proper divisors (1).

448991731 is an equidigital number, since it uses as much as digits as its factorization.

448991731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 46.

The square root of 448991731 is about 21189.4249804000. The cubic root of 448991731 is about 765.7366740028.

The spelling of 448991731 in words is "four hundred forty-eight million, nine hundred ninety-one thousand, seven hundred thirty-one".