9284894421 has 16 divisors (see below), whose sum is σ = 13525400640. Its totient is φ = 5618833920.

The previous prime is 9284894419. The next prime is 9284894447. The reversal of 9284894421 is 1244984829.

It is not a de Polignac number, because 9284894421 - 2¹ = 9284894419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9284894491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186826 + ... + 231243.

It is an arithmetic number, because the mean of its divisors is an integer number (845337540).

Almost surely, 2^9284894421 is an apocalyptic number.

It is an amenable number.

9284894421 is a deficient number, since it is larger than the sum of its proper divisors (4240506219).

9284894421 is a wasteful number, since it uses less digits than its factorization.

9284894421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418756.

The product of its digits is 1327104, while the sum is 51.

The square root of 9284894421 is about 96358.1570029232. The cubic root of 9284894421 is about 2101.8045276121.

The spelling of 9284894421 in words is "nine billion, two hundred eighty-four million, eight hundred ninety-four thousand, four hundred twenty-one".