448689623 has 4 divisors (see below), whose sum is σ = 448745088. Its totient is φ = 448634160.

The previous prime is 448689613. The next prime is 448689643. The reversal of 448689623 is 326986844.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 448689623 - 2⁴ = 448689607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448689613) 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, 12983 + ... + 32648.

It is an arithmetic number, because the mean of its divisors is an integer number (112186272).

Almost surely, 2^448689623 is an apocalyptic number.

448689623 is a deficient number, since it is larger than the sum of its proper divisors (55465).

448689623 is an equidigital number, since it uses as much as digits as its factorization.

448689623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55464.

The product of its digits is 1990656, while the sum is 50.

The square root of 448689623 is about 21182.2950361853. The cubic root of 448689623 is about 765.5648912699.

The spelling of 448689623 in words is "four hundred forty-eight million, six hundred eighty-nine thousand, six hundred twenty-three".