1016865 has 24 divisors (see below), whose sum is σ = 1797120. Its totient is φ = 531744.

The previous prime is 1016849. The next prime is 1016879. The reversal of 1016865 is 5686101.

It is not a de Polignac number, because 1016865 - 2⁴ = 1016849 is a prime.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2464 + ... + 2846.

It is an arithmetic number, because the mean of its divisors is an integer number (74880).

2^1016865 is an apocalyptic number.

1016865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1016865 is a deficient number, since it is larger than the sum of its proper divisors (780255).

1016865 is a wasteful number, since it uses less digits than its factorization.

1016865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1016865 is about 1008.3972431537. The cubic root of 1016865 is about 100.5590356346.

It can be divided in two parts, 1016 and 865, that added together give a palindrome (1881).

The spelling of 1016865 in words is "one million, sixteen thousand, eight hundred sixty-five".