14098721 has 12 divisors (see below), whose sum is σ = 17662932. Its totient is φ = 11154528.

The previous prime is 14098697. The next prime is 14098723. The reversal of 14098721 is 12789041.

It can be written as a sum of positive squares in 2 ways, for example, as 4264225 + 9834496 = 2065^2 + 3136^2 .

It is not a de Polignac number, because 14098721 - 2⁶ = 14098657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14098723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10430 + ... + 11703.

It is an arithmetic number, because the mean of its divisors is an integer number (1471911).

Almost surely, 2^14098721 is an apocalyptic number.

It is an amenable number.

14098721 is a deficient number, since it is larger than the sum of its proper divisors (3564211).

14098721 is a wasteful number, since it uses less digits than its factorization.

14098721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22160 (or 22153 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 14098721 is about 3754.8263608321. The cubic root of 14098721 is about 241.5794039812.

The spelling of 14098721 in words is "fourteen million, ninety-eight thousand, seven hundred twenty-one".