8018641 has 4 divisors (see below), whose sum is σ = 8079984. Its totient is φ = 7957300.

The previous prime is 8018639. The next prime is 8018671. The reversal of 8018641 is 1468108.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8018641 - 2¹ = 8018639 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8018671) 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, 30475 + ... + 30736.

It is an arithmetic number, because the mean of its divisors is an integer number (2019996).

Almost surely, 2^8018641 is an apocalyptic number.

It is an amenable number.

8018641 is a deficient number, since it is larger than the sum of its proper divisors (61343).

8018641 is a wasteful number, since it uses less digits than its factorization.

8018641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61342.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 8018641 is about 2831.7205017445. The cubic root of 8018641 is about 200.1552211674.

It can be divided in two parts, 80 and 18641, that added together give a triangular number (18721 = T₁₉₃).

The spelling of 8018641 in words is "eight million, eighteen thousand, six hundred forty-one".