9198428999 has 2 divisors, whose sum is σ = 9198429000. Its totient is φ = 9198428998.

The previous prime is 9198428957. The next prime is 9198429041. The reversal of 9198428999 is 9998248919.

It is a balanced prime because it is at equal distance from previous prime (9198428957) and next prime (9198429041).

It is a cyclic number.

It is not a de Polignac number, because 9198428999 - 2¹² = 9198424903 is a prime.

It is a super-2 number, since 2×9198428999² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9198428299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4599214499 + 4599214500.

It is an arithmetic number, because the mean of its divisors is an integer number (4599214500).

Almost surely, 2^9198428999 is an apocalyptic number.

9198428999 is a deficient number, since it is larger than the sum of its proper divisors (1).

9198428999 is an equidigital number, since it uses as much as digits as its factorization.

9198428999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30233088, while the sum is 68.

The square root of 9198428999 is about 95908.4407077917. The cubic root of 9198428999 is about 2095.2598298918.

The spelling of 9198428999 in words is "nine billion, one hundred ninety-eight million, four hundred twenty-eight thousand, nine hundred ninety-nine".