4471921 has 2 divisors, whose sum is σ = 4471922. Its totient is φ = 4471920.

The previous prime is 4471891. The next prime is 4471927. The reversal of 4471921 is 1291744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2768896 + 1703025 = 1664^2 + 1305^2 .

It is a cyclic number.

It is not a de Polignac number, because 4471921 - 2⁵ = 4471889 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4471921.

It is not a weakly prime, because it can be changed into another prime (4471927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2235960 + 2235961.

It is an arithmetic number, because the mean of its divisors is an integer number (2235961).

Almost surely, 2^4471921 is an apocalyptic number.

It is an amenable number.

4471921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4471921 is an equidigital number, since it uses as much as digits as its factorization.

4471921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 4471921 is about 2114.6917032986. The cubic root of 4471921 is about 164.7522575319.

The spelling of 4471921 in words is "four million, four hundred seventy-one thousand, nine hundred twenty-one".