8638061 has 2 divisors, whose sum is σ = 8638062. Its totient is φ = 8638060.

The previous prime is 8638051. The next prime is 8638067. The reversal of 8638061 is 1608368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6220036 + 2418025 = 2494^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 8638061 - 2¹⁴ = 8621677 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8638067) 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 as a sum of consecutive naturals, namely, 4319030 + 4319031.

It is an arithmetic number, because the mean of its divisors is an integer number (4319031).

Almost surely, 2^8638061 is an apocalyptic number.

It is an amenable number.

8638061 is a deficient number, since it is larger than the sum of its proper divisors (1).

8638061 is an equidigital number, since it uses as much as digits as its factorization.

8638061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 8638061 is about 2939.0578422345. The cubic root of 8638061 is about 205.1817622520.

The spelling of 8638061 in words is "eight million, six hundred thirty-eight thousand, sixty-one".