11704021 has 4 divisors (see below), whose sum is σ = 13376032. Its totient is φ = 10032012.

The previous prime is 11703971. The next prime is 11704027. The reversal of 11704021 is 12040711.

11704021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 11704021 - 2⁹ = 11703509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11703986 and 11704004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11704027) 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, 835995 + ... + 836008.

It is an arithmetic number, because the mean of its divisors is an integer number (3344008).

Almost surely, 2^11704021 is an apocalyptic number.

It is an amenable number.

11704021 is a deficient number, since it is larger than the sum of its proper divisors (1672011).

11704021 is an equidigital number, since it uses as much as digits as its factorization.

11704021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672010.

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

The square root of 11704021 is about 3421.1139998544. The cubic root of 11704021 is about 227.0448720055.

Adding to 11704021 its reverse (12040711), we get a palindrome (23744732).

The spelling of 11704021 in words is "eleven million, seven hundred four thousand, twenty-one".