14721697 has 4 divisors (see below), whose sum is σ = 14730516. Its totient is φ = 14712880.

The previous prime is 14721689. The next prime is 14721703. The reversal of 14721697 is 79612741.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7667361 + 7054336 = 2769^2 + 2656^2 .

It is a cyclic number.

It is not a de Polignac number, because 14721697 - 2³ = 14721689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14721607) 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, 1054 + ... + 5527.

It is an arithmetic number, because the mean of its divisors is an integer number (3682629).

Almost surely, 2^14721697 is an apocalyptic number.

It is an amenable number.

14721697 is a deficient number, since it is larger than the sum of its proper divisors (8819).

14721697 is an equidigital number, since it uses as much as digits as its factorization.

14721697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8818.

The product of its digits is 21168, while the sum is 37.

The square root of 14721697 is about 3836.8863678770. The cubic root of 14721697 is about 245.0864445756.

The spelling of 14721697 in words is "fourteen million, seven hundred twenty-one thousand, six hundred ninety-seven".