9867428401 has 2 divisors, whose sum is σ = 9867428402. Its totient is φ = 9867428400.

The previous prime is 9867428369. The next prime is 9867428413. The reversal of 9867428401 is 1048247689.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9789123600 + 78304801 = 98940^2 + 8849^2 .

It is a cyclic number.

It is not a de Polignac number, because 9867428401 - 2⁵ = 9867428369 is a prime.

It is a super-2 number, since 2×9867428401² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9867428471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4933714200 + 4933714201.

It is an arithmetic number, because the mean of its divisors is an integer number (4933714201).

Almost surely, 2^9867428401 is an apocalyptic number.

It is an amenable number.

9867428401 is a deficient number, since it is larger than the sum of its proper divisors (1).

9867428401 is an equidigital number, since it uses as much as digits as its factorization.

9867428401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 9867428401 is about 99334.9304172505. The cubic root of 9867428401 is about 2144.8717438070.

The spelling of 9867428401 in words is "nine billion, eight hundred sixty-seven million, four hundred twenty-eight thousand, four hundred one".