1013604 has 12 divisors (see below), whose sum is σ = 2365104. Its totient is φ = 337864.

The previous prime is 1013603. The next prime is 1013609. The reversal of 1013604 is 4063101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1013603) 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, 42222 + ... + 42245.

It is an arithmetic number, because the mean of its divisors is an integer number (197092).

2^1013604 is an apocalyptic number.

It is an amenable number.

1013604 is an abundant number, since it is smaller than the sum of its proper divisors (1351500).

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

1013604 is a wasteful number, since it uses less digits than its factorization.

1013604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84474 (or 84472 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1013604 is about 1006.7790224275. The cubic root of 1013604 is about 100.4514257481.

Adding to 1013604 its reverse (4063101), we get a palindrome (5076705).

The spelling of 1013604 in words is "one million, thirteen thousand, six hundred four".