4447711897 has 2 divisors, whose sum is σ = 4447711898. Its totient is φ = 4447711896.

The previous prime is 4447711883. The next prime is 4447711901. The reversal of 4447711897 is 7981177444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3968496016 + 479215881 = 62996^2 + 21891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4447711897 is a prime.

It is a super-2 number, since 2×4447711897² = 39564282237430677218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4447721897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2223855948 + 2223855949.

It is an arithmetic number, because the mean of its divisors is an integer number (2223855949).

Almost surely, 2^4447711897 is an apocalyptic number.

It is an amenable number.

4447711897 is a deficient number, since it is larger than the sum of its proper divisors (1).

4447711897 is an equidigital number, since it uses as much as digits as its factorization.

4447711897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1580544, while the sum is 52.

The square root of 4447711897 is about 66691.1680584468. The cubic root of 4447711897 is about 1644.5441957375.

The spelling of 4447711897 in words is "four billion, four hundred forty-seven million, seven hundred eleven thousand, eight hundred ninety-seven".