7389169897 has 2 divisors, whose sum is σ = 7389169898. Its totient is φ = 7389169896.

The previous prime is 7389169849. The next prime is 7389169933. The reversal of 7389169897 is 7989619837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6872244201 + 516925696 = 82899^2 + 22736^2 .

It is an emirp because it is prime and its reverse (7989619837) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7389169897 - 2⁷ = 7389169769 is a prime.

It is not a weakly prime, because it can be changed into another prime (7389169807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3694584948 + 3694584949.

It is an arithmetic number, because the mean of its divisors is an integer number (3694584949).

Almost surely, 2^7389169897 is an apocalyptic number.

It is an amenable number.

7389169897 is a deficient number, since it is larger than the sum of its proper divisors (1).

7389169897 is an equidigital number, since it uses as much as digits as its factorization.

7389169897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41150592, while the sum is 67.

The square root of 7389169897 is about 85960.2809267164. The cubic root of 7389169897 is about 1947.7440399518.

The spelling of 7389169897 in words is "seven billion, three hundred eighty-nine million, one hundred sixty-nine thousand, eight hundred ninety-seven".