9122913928 has 16 divisors (see below), whose sum is σ = 17107795980. Its totient is φ = 4560835008.

The previous prime is 9122913893. The next prime is 9122913929. The reversal of 9122913928 is 8293192219.

It can be written as a sum of positive squares in 2 ways, for example, as 8445977604 + 676936324 = 91902^2 + 26018^2 .

It is not an unprimeable number, because it can be changed into a prime (9122913929) 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, 12151 + ... + 135622.

Almost surely, 2^9122913928 is an apocalyptic number.

It is an amenable number.

9122913928 is a deficient number, since it is larger than the sum of its proper divisors (7984882052).

9122913928 is a wasteful number, since it uses less digits than its factorization.

9122913928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155496 (or 155492 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 9122913928 is about 95513.9462487023. The cubic root of 9122913928 is about 2089.5103458265.

The spelling of 9122913928 in words is "nine billion, one hundred twenty-two million, nine hundred thirteen thousand, nine hundred twenty-eight".