8963641 has 4 divisors (see below), whose sum is σ = 9490932. Its totient is φ = 8436352.

The previous prime is 8963627. The next prime is 8963653. The reversal of 8963641 is 1463698.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4141225 + 4822416 = 2035^2 + 2196^2 .

It is not a de Polignac number, because 8963641 - 2⁵ = 8963609 is a prime.

It is a Duffinian number.

8963641 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8963641.

It is not an unprimeable number, because it can be changed into a prime (8963621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263620 + ... + 263653.

It is an arithmetic number, because the mean of its divisors is an integer number (2372733).

Almost surely, 2^8963641 is an apocalyptic number.

It is an amenable number.

8963641 is a deficient number, since it is larger than the sum of its proper divisors (527291).

8963641 is a wasteful number, since it uses less digits than its factorization.

8963641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527290.

The product of its digits is 31104, while the sum is 37.

The square root of 8963641 is about 2993.9340340094. The cubic root of 8963641 is about 207.7278940007.

It can be divided in two parts, 8963 and 641, that added together give a square (9604 = 98²).

The spelling of 8963641 in words is "eight million, nine hundred sixty-three thousand, six hundred forty-one".