9893428459 has 12 divisors (see below), whose sum is σ = 10451685720. Its totient is φ = 9364917600.

The previous prime is 9893428429. The next prime is 9893428469. The reversal of 9893428459 is 9548243989.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a de Polignac number, because none of the positive numbers 2^k-9893428459 is a prime.

It is a super-2 number, since 2×9893428459² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9893428397 and 9893428406.

It is not an unprimeable number, because it can be changed into a prime (9893428429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8237059 + ... + 8238259.

It is an arithmetic number, because the mean of its divisors is an integer number (870973810).

Almost surely, 2^9893428459 is an apocalyptic number.

9893428459 is a deficient number, since it is larger than the sum of its proper divisors (558257261).

9893428459 is an frugal number, since it uses more digits than its factorization.

9893428459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459 (or 1220 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 61.

The square root of 9893428459 is about 99465.7149926546. The cubic root of 9893428459 is about 2146.7539593273.

The spelling of 9893428459 in words is "nine billion, eight hundred ninety-three million, four hundred twenty-eight thousand, four hundred fifty-nine".