1049665 has 16 divisors (see below), whose sum is σ = 1364688. Its totient is φ = 772096.

The previous prime is 1049663. The next prime is 1049677. The reversal of 1049665 is 5669401.

It can be written as a sum of positive squares in 8 ways, for example, as 1089 + 1048576 = 33^2 + 1024^2 .

It is a cyclic number.

It is not a de Polignac number, because 1049665 - 2¹ = 1049663 is a prime.

It is a super-2 number, since 2×1049665² = 2203593224450, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1049663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4389 + ... + 4621.

It is an arithmetic number, because the mean of its divisors is an integer number (85293).

2^1049665 is an apocalyptic number.

It is an amenable number.

1049665 is a deficient number, since it is larger than the sum of its proper divisors (315023).

1049665 is a wasteful number, since it uses less digits than its factorization.

1049665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1049665 is about 1024.5316002935. The cubic root of 1049665 is about 101.6288252371.

The spelling of 1049665 in words is "one million, forty-nine thousand, six hundred sixty-five".