1065604 has 6 divisors (see below), whose sum is σ = 1864814. Its totient is φ = 532800.

The previous prime is 1065601. The next prime is 1065629. The reversal of 1065604 is 4065601.

It can be written as a sum of positive squares in only one way, i.e., 864900 + 200704 = 930^2 + 448^2 .

It is a super-2 number, since 2×1065604² = 2271023769632, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1065601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133197 + ... + 133204.

2^1065604 is an apocalyptic number.

It is an amenable number.

1065604 is a deficient number, since it is larger than the sum of its proper divisors (799210).

1065604 is a wasteful number, since it uses less digits than its factorization.

1065604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266405 (or 266403 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1065604 is about 1032.2809695039. The cubic root of 1065604 is about 102.1406492331.

The spelling of 1065604 in words is "one million, sixty-five thousand, six hundred four".