1038865 has 8 divisors (see below), whose sum is σ = 1254888. Its totient is φ = 825600.

The previous prime is 1038833. The next prime is 1038881. The reversal of 1038865 is 5688301.

It can be written as a sum of positive squares in 4 ways, for example, as 36864 + 1002001 = 192^2 + 1001^2 .

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

It is not a de Polignac number, because 1038865 - 2⁵ = 1038833 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265 + ... + 1465.

It is an arithmetic number, because the mean of its divisors is an integer number (156861).

2^1038865 is an apocalyptic number.

It is an amenable number.

1038865 is a deficient number, since it is larger than the sum of its proper divisors (216023).

1038865 is a wasteful number, since it uses less digits than its factorization.

1038865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1038865 is about 1019.2472712742. The cubic root of 1038865 is about 101.2790700454.

The spelling of 1038865 in words is "one million, thirty-eight thousand, eight hundred sixty-five".