8891424969 has 24 divisors (see below), whose sum is σ = 14019708480. Its totient is φ = 4904329920.

The previous prime is 8891424961. The next prime is 8891425009. The reversal of 8891424969 is 9694241988.

It is not a de Polignac number, because 8891424969 - 2³ = 8891424961 is a prime.

It is a super-2 number, since 2×8891424969² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8891424961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2325079 + ... + 2328899.

It is an arithmetic number, because the mean of its divisors is an integer number (584154520).

Almost surely, 2^8891424969 is an apocalyptic number.

It is an amenable number.

8891424969 is a deficient number, since it is larger than the sum of its proper divisors (5128283511).

8891424969 is an frugal number, since it uses more digits than its factorization.

8891424969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7681 (or 3860 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 60.

The square root of 8891424969 is about 94294.3527948519. The cubic root of 8891424969 is about 2071.6853233338.

The spelling of 8891424969 in words is "eight billion, eight hundred ninety-one million, four hundred twenty-four thousand, nine hundred sixty-nine".