8863641 has 8 divisors (see below), whose sum is σ = 13131360. Its totient is φ = 5909076.

The previous prime is 8863639. The next prime is 8863643. The reversal of 8863641 is 1463688.

It is a happy number.

8863641 is a `hidden beast` number, since 8 + 8 + 6 + 3 + 641 = 666.

It is an interprime number because it is at equal distance from previous prime (8863639) and next prime (8863643).

It is not a de Polignac number, because 8863641 - 2¹ = 8863639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8863596 and 8863605.

It is not an unprimeable number, because it can be changed into a prime (8863643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164115 + ... + 164168.

It is an arithmetic number, because the mean of its divisors is an integer number (1641420).

Almost surely, 2^8863641 is an apocalyptic number.

It is an amenable number.

8863641 is a deficient number, since it is larger than the sum of its proper divisors (4267719).

8863641 is a wasteful number, since it uses less digits than its factorization.

8863641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328292 (or 328286 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 8863641 is about 2977.1867593418. The cubic root of 8863641 is about 206.9525200912.

The spelling of 8863641 in words is "eight million, eight hundred sixty-three thousand, six hundred forty-one".