8471961 has 6 divisors (see below), whose sum is σ = 12237290. Its totient is φ = 5647968.

The previous prime is 8471941. The next prime is 8471963. The reversal of 8471961 is 1691748.

It can be written as a sum of positive squares in only one way, i.e., 5475600 + 2996361 = 2340^2 + 1731^2 .

It is not a de Polignac number, because 8471961 - 2¹³ = 8463769 is a prime.

It is a Duffinian number.

8471961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8471963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 470656 + ... + 470673.

Almost surely, 2^8471961 is an apocalyptic number.

It is an amenable number.

8471961 is a deficient number, since it is larger than the sum of its proper divisors (3765329).

8471961 is a wasteful number, since it uses less digits than its factorization.

8471961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941335 (or 941332 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 8471961 is about 2910.6633264601. The cubic root of 8471961 is about 203.8581049013.

It can be divided in two parts, 8 and 471961, that added together give a square (471969 = 687²).

The spelling of 8471961 in words is "eight million, four hundred seventy-one thousand, nine hundred sixty-one".