14721289 has 4 divisors (see below), whose sum is σ = 16059600. Its totient is φ = 13382980.

The previous prime is 14721281. The next prime is 14721319. The reversal of 14721289 is 98212741.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98212741 = 11 ⋅8928431.

It is a cyclic number.

It is not a de Polignac number, because 14721289 - 2³ = 14721281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14721281) 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, 669139 + ... + 669160.

It is an arithmetic number, because the mean of its divisors is an integer number (4014900).

Almost surely, 2^14721289 is an apocalyptic number.

It is an amenable number.

14721289 is a deficient number, since it is larger than the sum of its proper divisors (1338311).

14721289 is a wasteful number, since it uses less digits than its factorization.

14721289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338310.

The product of its digits is 8064, while the sum is 34.

The square root of 14721289 is about 3836.8331993976. The cubic root of 14721289 is about 245.0841804300.

The spelling of 14721289 in words is "fourteen million, seven hundred twenty-one thousand, two hundred eighty-nine".