8639011 has 2 divisors, whose sum is σ = 8639012. Its totient is φ = 8639010.

The previous prime is 8638999. The next prime is 8639027. The reversal of 8639011 is 1109368.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8639011 - 2²³ = 250403 is a prime.

It is a super-2 number, since 2×8639011² = 149265022116242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8639051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4319505 + 4319506.

It is an arithmetic number, because the mean of its divisors is an integer number (4319506).

Almost surely, 2^8639011 is an apocalyptic number.

8639011 is a deficient number, since it is larger than the sum of its proper divisors (1).

8639011 is an equidigital number, since it uses as much as digits as its factorization.

8639011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 8639011 is about 2939.2194542089. The cubic root of 8639011 is about 205.1892838292.

The spelling of 8639011 in words is "eight million, six hundred thirty-nine thousand, eleven".