4020265897 has 2 divisors, whose sum is σ = 4020265898. Its totient is φ = 4020265896.

The previous prime is 4020265891. The next prime is 4020265973. The reversal of 4020265897 is 7985620204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3875809536 + 144456361 = 62256^2 + 12019^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4020265897 is a prime.

It is not a weakly prime, because it can be changed into another prime (4020265891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010132948 + 2010132949.

It is an arithmetic number, because the mean of its divisors is an integer number (2010132949).

Almost surely, 2^4020265897 is an apocalyptic number.

It is an amenable number.

4020265897 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020265897 is an equidigital number, since it uses as much as digits as its factorization.

4020265897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 4020265897 is about 63405.5667666491. The cubic root of 4020265897 is about 1590.0773793809.

The spelling of 4020265897 in words is "four billion, twenty million, two hundred sixty-five thousand, eight hundred ninety-seven".