1023604 has 12 divisors (see below), whose sum is σ = 1896804. Its totient is φ = 481664.

The previous prime is 1023601. The next prime is 1023643. The reversal of 1023604 is 4063201.

It can be written as a sum of positive squares in 2 ways, for example, as 902500 + 121104 = 950^2 + 348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023601) 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 3 ways as a sum of consecutive naturals, for example, 7459 + ... + 7594.

It is an arithmetic number, because the mean of its divisors is an integer number (158067).

2^1023604 is an apocalyptic number.

It is an amenable number.

1023604 is a deficient number, since it is larger than the sum of its proper divisors (873200).

1023604 is a wasteful number, since it uses less digits than its factorization.

1023604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15074 (or 15072 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1023604 is about 1011.7331664031. The cubic root of 1023604 is about 100.7806893805.

Adding to 1023604 its reverse (4063201), we get a palindrome (5086805).

The spelling of 1023604 in words is "one million, twenty-three thousand, six hundred four".