14070721 has 4 divisors (see below), whose sum is σ = 16080832. Its totient is φ = 12060612.

The previous prime is 14070703. The next prime is 14070743. The reversal of 14070721 is 12707041.

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 14070721 - 2⁷ = 14070593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14070692 and 14070701.

It is not an unprimeable number, because it can be changed into a prime (14070751) 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, 1005045 + ... + 1005058.

It is an arithmetic number, because the mean of its divisors is an integer number (4020208).

Almost surely, 2^14070721 is an apocalyptic number.

It is an amenable number.

14070721 is a deficient number, since it is larger than the sum of its proper divisors (2010111).

14070721 is an equidigital number, since it uses as much as digits as its factorization.

14070721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010110.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 14070721 is about 3751.0959731790. The cubic root of 14070721 is about 241.4193727707.

Adding to 14070721 its reverse (12707041), we get a palindrome (26777762).

The spelling of 14070721 in words is "fourteen million, seventy thousand, seven hundred twenty-one".