1036665 has 32 divisors (see below), whose sum is σ = 2108160. Its totient is φ = 473472.

The previous prime is 1036661. The next prime is 1036667. The reversal of 1036665 is 5666301.

It is not a de Polignac number, because 1036665 - 2² = 1036661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1036665 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1036661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397 + ... + 1493.

It is an arithmetic number, because the mean of its divisors is an integer number (65880).

2^1036665 is an apocalyptic number.

1036665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1036665 is an abundant number, since it is smaller than the sum of its proper divisors (1071495).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1036665 is a wasteful number, since it uses less digits than its factorization.

1036665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118 (or 1112 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1036665 is about 1018.1674714898. The cubic root of 1036665 is about 101.2075267671.

The spelling of 1036665 in words is "one million, thirty-six thousand, six hundred sixty-five".