9421697489 has 2 divisors, whose sum is σ = 9421697490. Its totient is φ = 9421697488.

The previous prime is 9421697479. The next prime is 9421697513. The reversal of 9421697489 is 9847961249.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9198344464 + 223353025 = 95908^2 + 14945^2 .

It is a cyclic number.

It is not a de Polignac number, because 9421697489 - 2¹⁶ = 9421631953 is a prime.

It is not a weakly prime, because it can be changed into another prime (9421697479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4710848744 + 4710848745.

It is an arithmetic number, because the mean of its divisors is an integer number (4710848745).

Almost surely, 2^9421697489 is an apocalyptic number.

It is an amenable number.

9421697489 is a deficient number, since it is larger than the sum of its proper divisors (1).

9421697489 is an equidigital number, since it uses as much as digits as its factorization.

9421697489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 59.

The square root of 9421697489 is about 97065.4289075158. The cubic root of 9421697489 is about 2112.0768608469.

The spelling of 9421697489 in words is "nine billion, four hundred twenty-one million, six hundred ninety-seven thousand, four hundred eighty-nine".