448723091 has 4 divisors (see below), whose sum is σ = 449501352. Its totient is φ = 447944832.

The previous prime is 448722979. The next prime is 448723111. The reversal of 448723091 is 190327844.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448723091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448723291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388265 + ... + 389418.

It is an arithmetic number, because the mean of its divisors is an integer number (112375338).

Almost surely, 2^448723091 is an apocalyptic number.

448723091 is a deficient number, since it is larger than the sum of its proper divisors (778261).

448723091 is an equidigital number, since it uses as much as digits as its factorization.

448723091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778260.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 448723091 is about 21183.0850208368. The cubic root of 448723091 is about 765.5839254288.

The spelling of 448723091 in words is "four hundred forty-eight million, seven hundred twenty-three thousand, ninety-one".