1038605 has 4 divisors (see below), whose sum is σ = 1246332. Its totient is φ = 830880.

The previous prime is 1038601. The next prime is 1038617. The reversal of 1038605 is 5068301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 538756 + 499849 = 734^2 + 707^2 .

It is not a de Polignac number, because 1038605 - 2² = 1038601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1038601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103856 + ... + 103865.

It is an arithmetic number, because the mean of its divisors is an integer number (311583).

2^1038605 is an apocalyptic number.

It is an amenable number.

1038605 is a deficient number, since it is larger than the sum of its proper divisors (207727).

1038605 is an equidigital number, since it uses as much as digits as its factorization.

1038605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207726.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1038605 is about 1019.1197181882. The cubic root of 1038605 is about 101.2706201970.

The spelling of 1038605 in words is "one million, thirty-eight thousand, six hundred five".