9375979489 has 2 divisors, whose sum is σ = 9375979490. Its totient is φ = 9375979488.

The previous prime is 9375979477. The next prime is 9375979493. The reversal of 9375979489 is 9849795739.

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., 7107838864 + 2268140625 = 84308^2 + 47625^2 .

It is a cyclic number.

It is not a de Polignac number, because 9375979489 - 2⁹ = 9375978977 is a prime.

It is a super-2 number, since 2×9375979489² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9375979499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4687989744 + 4687989745.

It is an arithmetic number, because the mean of its divisors is an integer number (4687989745).

Almost surely, 2^9375979489 is an apocalyptic number.

It is an amenable number.

9375979489 is a deficient number, since it is larger than the sum of its proper divisors (1).

9375979489 is an equidigital number, since it uses as much as digits as its factorization.

9375979489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 154314720, while the sum is 70.

The square root of 9375979489 is about 96829.6415825237. The cubic root of 9375979489 is about 2108.6550947431.

The spelling of 9375979489 in words is "nine billion, three hundred seventy-five million, nine hundred seventy-nine thousand, four hundred eighty-nine".