4390323061 has 2 divisors, whose sum is σ = 4390323062. Its totient is φ = 4390323060.

The previous prime is 4390323031. The next prime is 4390323181. The reversal of 4390323061 is 1603230934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3320640625 + 1069682436 = 57625^2 + 32706^2 .

It is a cyclic number.

It is not a de Polignac number, because 4390323061 - 2⁵ = 4390323029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4390323031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2195161530 + 2195161531.

It is an arithmetic number, because the mean of its divisors is an integer number (2195161531).

Almost surely, 2^4390323061 is an apocalyptic number.

It is an amenable number.

4390323061 is a deficient number, since it is larger than the sum of its proper divisors (1).

4390323061 is an equidigital number, since it uses as much as digits as its factorization.

4390323061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 4390323061 is about 66259.5129849292. The cubic root of 4390323061 is about 1637.4403682498.

Adding to 4390323061 its reverse (1603230934), we get a palindrome (5993553995).

The spelling of 4390323061 in words is "four billion, three hundred ninety million, three hundred twenty-three thousand, sixty-one".