14473721 has 2 divisors, whose sum is σ = 14473722. Its totient is φ = 14473720.

The previous prime is 14473709. The next prime is 14473729. The reversal of 14473721 is 12737441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10725625 + 3748096 = 3275^2 + 1936^2 .

It is an emirp because it is prime and its reverse (12737441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14473721 - 2¹⁰ = 14472697 is a prime.

It is not a weakly prime, because it can be changed into another prime (14473729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7236860 + 7236861.

It is an arithmetic number, because the mean of its divisors is an integer number (7236861).

Almost surely, 2^14473721 is an apocalyptic number.

It is an amenable number.

14473721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14473721 is an equidigital number, since it uses as much as digits as its factorization.

14473721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 29.

The square root of 14473721 is about 3804.4343863444. The cubic root of 14473721 is about 243.7025455724.

The spelling of 14473721 in words is "fourteen million, four hundred seventy-three thousand, seven hundred twenty-one".