448121787 has 16 divisors (see below), whose sum is σ = 604146048. Its totient is φ = 295439040.

The previous prime is 448121777. The next prime is 448121789. The reversal of 448121787 is 787121844.

It is not a de Polignac number, because 448121787 - 2¹⁶ = 448056251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (448121789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121188 + ... + 124830.

It is an arithmetic number, because the mean of its divisors is an integer number (37759128).

Almost surely, 2^448121787 is an apocalyptic number.

448121787 is a deficient number, since it is larger than the sum of its proper divisors (156024261).

448121787 is a wasteful number, since it uses less digits than its factorization.

448121787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4090.

The product of its digits is 100352, while the sum is 42.

The square root of 448121787 is about 21168.8872404763. The cubic root of 448121787 is about 765.2418031811.

The spelling of 448121787 in words is "four hundred forty-eight million, one hundred twenty-one thousand, seven hundred eighty-seven".