4480070921 has 2 divisors, whose sum is σ = 4480070922. Its totient is φ = 4480070920.

The previous prime is 4480070909. The next prime is 4480070941. The reversal of 4480070921 is 1290700844.

4480070921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3863244025 + 616826896 = 62155^2 + 24836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4480070921 is a prime.

It is not a weakly prime, because it can be changed into another prime (4480070941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2240035460 + 2240035461.

It is an arithmetic number, because the mean of its divisors is an integer number (2240035461).

Almost surely, 2^4480070921 is an apocalyptic number.

It is an amenable number.

4480070921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4480070921 is an equidigital number, since it uses as much as digits as its factorization.

4480070921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 4480070921 is about 66933.3319131806. The cubic root of 4480070921 is about 1648.5228188559.

The spelling of 4480070921 in words is "four billion, four hundred eighty million, seventy thousand, nine hundred twenty-one".