8063641 has 2 divisors, whose sum is σ = 8063642. Its totient is φ = 8063640.

The previous prime is 8063633. The next prime is 8063647. The reversal of 8063641 is 1463608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7728400 + 335241 = 2780^2 + 579^2 .

It is a cyclic number.

It is not a de Polignac number, because 8063641 - 2³ = 8063633 is a prime.

It is equal to p₅₄₃₇₉₀ and since 8063641 and 543790 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8063647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4031820 + 4031821.

It is an arithmetic number, because the mean of its divisors is an integer number (4031821).

Almost surely, 2^8063641 is an apocalyptic number.

It is an amenable number.

8063641 is a deficient number, since it is larger than the sum of its proper divisors (1).

8063641 is an equidigital number, since it uses as much as digits as its factorization.

8063641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 8063641 is about 2839.6550846890. The cubic root of 8063641 is about 200.5289415377.

The spelling of 8063641 in words is "eight million, sixty-three thousand, six hundred forty-one".