8463641 has 4 divisors (see below), whose sum is σ = 8590032. Its totient is φ = 8337252.

The previous prime is 8463617. The next prime is 8463649. The reversal of 8463641 is 1463648.

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 a de Polignac number, because none of the positive numbers 2^k-8463641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8463598 and 8463607.

It is not an unprimeable number, because it can be changed into a prime (8463649) 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, 63095 + ... + 63228.

It is an arithmetic number, because the mean of its divisors is an integer number (2147508).

Almost surely, 2^8463641 is an apocalyptic number.

It is an amenable number.

8463641 is a deficient number, since it is larger than the sum of its proper divisors (126391).

8463641 is a wasteful number, since it uses less digits than its factorization.

8463641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126390.

The product of its digits is 13824, while the sum is 32.

The square root of 8463641 is about 2909.2337479137. The cubic root of 8463641 is about 203.7913492052.

The spelling of 8463641 in words is "eight million, four hundred sixty-three thousand, six hundred forty-one".