8471641 has 2 divisors, whose sum is σ = 8471642. Its totient is φ = 8471640.

The previous prime is 8471623. The next prime is 8471653. The reversal of 8471641 is 1461748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8294400 + 177241 = 2880^2 + 421^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8471641 is a prime.

It is equal to p₅₆₉₃₁₇ and since 8471641 and 569317 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (8471611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4235820 + 4235821.

It is an arithmetic number, because the mean of its divisors is an integer number (4235821).

Almost surely, 2^8471641 is an apocalyptic number.

It is an amenable number.

8471641 is a deficient number, since it is larger than the sum of its proper divisors (1).

8471641 is an equidigital number, since it uses as much as digits as its factorization.

8471641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 8471641 is about 2910.6083556535. The cubic root of 8471641 is about 203.8555381829.

The spelling of 8471641 in words is "eight million, four hundred seventy-one thousand, six hundred forty-one".