7198307489 has 4 divisors (see below), whose sum is σ = 7206747156. Its totient is φ = 7189867824.

The previous prime is 7198307483. The next prime is 7198307507. The reversal of 7198307489 is 9847038917.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9847038917 = 3761 ⋅2618197.

It can be written as a sum of positive squares in 2 ways, for example, as 1623445264 + 5574862225 = 40292^2 + 74665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7198307489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7198307483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4218554 + ... + 4220259.

It is an arithmetic number, because the mean of its divisors is an integer number (1801686789).

Almost surely, 2^7198307489 is an apocalyptic number.

It is an amenable number.

7198307489 is a deficient number, since it is larger than the sum of its proper divisors (8439667).

7198307489 is an equidigital number, since it uses as much as digits as its factorization.

7198307489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8439666.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The square root of 7198307489 is about 84842.8399395023. The cubic root of 7198307489 is about 1930.8274516683.

The spelling of 7198307489 in words is "seven billion, one hundred ninety-eight million, three hundred seven thousand, four hundred eighty-nine".