9122913893 has 2 divisors, whose sum is σ = 9122913894. Its totient is φ = 9122913892.

The previous prime is 9122913889. The next prime is 9122913929. The reversal of 9122913893 is 3983192219.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6128854369 + 2994059524 = 78287^2 + 54718^2 .

It is a cyclic number.

It is not a de Polignac number, because 9122913893 - 2² = 9122913889 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9122913823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4561456946 + 4561456947.

It is an arithmetic number, because the mean of its divisors is an integer number (4561456947).

Almost surely, 2^9122913893 is an apocalyptic number.

It is an amenable number.

9122913893 is a deficient number, since it is larger than the sum of its proper divisors (1).

9122913893 is an equidigital number, since it uses as much as digits as its factorization.

9122913893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 47.

The square root of 9122913893 is about 95513.9460654830. The cubic root of 9122913893 is about 2089.5103431544.

The spelling of 9122913893 in words is "nine billion, one hundred twenty-two million, nine hundred thirteen thousand, eight hundred ninety-three".