14721399 has 64 divisors (see below), whose sum is σ = 27847680. Its totient is φ = 7464960.

The previous prime is 14721397. The next prime is 14721433. The reversal of 14721399 is 99312741.

14721399 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14721399 - 2¹ = 14721397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14721391) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 151719 + ... + 151815.

It is an arithmetic number, because the mean of its divisors is an integer number (435120).

Almost surely, 2^14721399 is an apocalyptic number.

14721399 is a deficient number, since it is larger than the sum of its proper divisors (13126281).

14721399 is a wasteful number, since it uses less digits than its factorization.

14721399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 191 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 14721399 is about 3836.8475341092. The cubic root of 14721399 is about 245.0847908656.

The spelling of 14721399 in words is "fourteen million, seven hundred twenty-one thousand, three hundred ninety-nine".