4468721 has 2 divisors, whose sum is σ = 4468722. Its totient is φ = 4468720.

The previous prime is 4468687. The next prime is 4468727. The reversal of 4468721 is 1278644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 1860496 = 1615^2 + 1364^2 .

It is a cyclic number.

It is not a de Polignac number, because 4468721 - 2¹⁴ = 4452337 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4468727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2234360 + 2234361.

It is an arithmetic number, because the mean of its divisors is an integer number (2234361).

Almost surely, 2^4468721 is an apocalyptic number.

It is an amenable number.

4468721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4468721 is an equidigital number, since it uses as much as digits as its factorization.

4468721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 32.

The square root of 4468721 is about 2113.9349564260. The cubic root of 4468721 is about 164.7129505595.

The spelling of 4468721 in words is "four million, four hundred sixty-eight thousand, seven hundred twenty-one".