9220279889 has 2 divisors, whose sum is σ = 9220279890. Its totient is φ = 9220279888.

The previous prime is 9220279867. The next prime is 9220279909. The reversal of 9220279889 is 9889720229.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9173808400 + 46471489 = 95780^2 + 6817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9220279889 is a prime.

It is a super-2 number, since 2×9220279889² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9220279489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4610139944 + 4610139945.

It is an arithmetic number, because the mean of its divisors is an integer number (4610139945).

Almost surely, 2^9220279889 is an apocalyptic number.

It is an amenable number.

9220279889 is a deficient number, since it is larger than the sum of its proper divisors (1).

9220279889 is an equidigital number, since it uses as much as digits as its factorization.

9220279889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The square root of 9220279889 is about 96022.2885011600. The cubic root of 9220279889 is about 2096.9176161313.

The spelling of 9220279889 in words is "nine billion, two hundred twenty million, two hundred seventy-nine thousand, eight hundred eighty-nine".