9804276805 has 16 divisors (see below), whose sum is σ = 12460247280. Its totient is φ = 7380237312.

The previous prime is 9804276803. The next prime is 9804276817. The reversal of 9804276805 is 5086724089.

It can be written as a sum of positive squares in 8 ways, for example, as 474455524 + 9329821281 = 21782^2 + 96591^2 .

It is a cyclic number.

It is not a de Polignac number, because 9804276805 - 2¹ = 9804276803 is a prime.

It is a super-2 number, since 2×9804276805² (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 (9804276803) 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, 409711 + ... + 432979.

It is an arithmetic number, because the mean of its divisors is an integer number (778765455).

Almost surely, 2^9804276805 is an apocalyptic number.

It is an amenable number.

9804276805 is a deficient number, since it is larger than the sum of its proper divisors (2655970475).

9804276805 is a wasteful number, since it uses less digits than its factorization.

9804276805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28248.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 9804276805 is about 99016.5481371675. The cubic root of 9804276805 is about 2140.2862170676.

The spelling of 9804276805 in words is "nine billion, eight hundred four million, two hundred seventy-six thousand, eight hundred five".