1004538865 has 8 divisors (see below), whose sum is σ = 1315032768. Its totient is φ = 730573680.

The previous prime is 1004538841. The next prime is 1004538881. The reversal of 1004538865 is 5688354001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1004538865 - 2⁵ = 1004538833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9132117 + ... + 9132226.

It is an arithmetic number, because the mean of its divisors is an integer number (164379096).

Almost surely, 2^1004538865 is an apocalyptic number.

It is an amenable number.

1004538865 is a deficient number, since it is larger than the sum of its proper divisors (310493903).

1004538865 is a wasteful number, since it uses less digits than its factorization.

1004538865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18264359.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 1004538865 is about 31694.4611091591. The cubic root of 1004538865 is about 1001.5106717218.

The spelling of 1004538865 in words is "one billion, four million, five hundred thirty-eight thousand, eight hundred sixty-five".