9961847 has 12 divisors (see below), whose sum is σ = 12270960. Its totient is φ = 8035776.

The previous prime is 9961841. The next prime is 9961867. The reversal of 9961847 is 7481699.

9961847 = T₆₁₃ + T₆₁₄ + ... + T₆₆₁.

9961847 is nontrivially palindromic in base 6.

It is not a de Polignac number, because 9961847 - 2¹² = 9957751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9961798 and 9961807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9961841) 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, 5147 + ... + 6812.

It is an arithmetic number, because the mean of its divisors is an integer number (1022580).

Almost surely, 2^9961847 is an apocalyptic number.

9961847 is a deficient number, since it is larger than the sum of its proper divisors (2309113).

9961847 is a wasteful number, since it uses less digits than its factorization.

9961847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11990 (or 11983 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 9961847 is about 3156.2393762197. The cubic root of 9961847 is about 215.1691259841.

The spelling of 9961847 in words is "nine million, nine hundred sixty-one thousand, eight hundred forty-seven".