1104721 has 4 divisors (see below), whose sum is σ = 1106944. Its totient is φ = 1102500.

The previous prime is 1104707. The next prime is 1104731. The reversal of 1104721 is 1274011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1104721 - 2⁹ = 1104209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1104695 and 1104704.

It is not an unprimeable number, because it can be changed into a prime (1104731) 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, 16 + ... + 1486.

It is an arithmetic number, because the mean of its divisors is an integer number (276736).

2^1104721 is an apocalyptic number.

It is an amenable number.

1104721 is a deficient number, since it is larger than the sum of its proper divisors (2223).

1104721 is an equidigital number, since it uses as much as digits as its factorization.

1104721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 1104721 is about 1051.0570869368. The cubic root of 1104721 is about 103.3754793970.

Adding to 1104721 its reverse (1274011), we get a palindrome (2378732).

The spelling of 1104721 in words is "one million, one hundred four thousand, seven hundred twenty-one".