7112447989 has 2 divisors, whose sum is σ = 7112447990. Its totient is φ = 7112447988.

The previous prime is 7112447959. The next prime is 7112448001. The reversal of 7112447989 is 9897442117.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5676416964 + 1436031025 = 75342^2 + 37895^2 .

It is a cyclic number.

It is not a de Polignac number, because 7112447989 - 2⁵ = 7112447957 is a prime.

It is a super-4 number, since 4×7112447989⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7112447939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3556223994 + 3556223995.

It is an arithmetic number, because the mean of its divisors is an integer number (3556223995).

Almost surely, 2^7112447989 is an apocalyptic number.

It is an amenable number.

7112447989 is a deficient number, since it is larger than the sum of its proper divisors (1).

7112447989 is an equidigital number, since it uses as much as digits as its factorization.

7112447989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 52.

The square root of 7112447989 is about 84335.3306094190. The cubic root of 7112447989 is about 1923.1199264982.

The spelling of 7112447989 in words is "seven billion, one hundred twelve million, four hundred forty-seven thousand, nine hundred eighty-nine".