8621471 has 4 divisors (see below), whose sum is σ = 8647392. Its totient is φ = 8595552.

The previous prime is 8621467. The next prime is 8621477. The reversal of 8621471 is 1741268.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8621471 - 2² = 8621467 is a prime.

It is a super-3 number, since 3×8621471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8621477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12455 + ... + 13128.

It is an arithmetic number, because the mean of its divisors is an integer number (2161848).

Almost surely, 2^8621471 is an apocalyptic number.

8621471 is a deficient number, since it is larger than the sum of its proper divisors (25921).

8621471 is a wasteful number, since it uses less digits than its factorization.

8621471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25920.

The product of its digits is 2688, while the sum is 29.

The square root of 8621471 is about 2936.2341527882. The cubic root of 8621471 is about 205.0503227639.

The spelling of 8621471 in words is "eight million, six hundred twenty-one thousand, four hundred seventy-one".