10639589 has 2 divisors, whose sum is σ = 10639590. Its totient is φ = 10639588.

The previous prime is 10639583. The next prime is 10639613. The reversal of 10639589 is 98593601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9351364 + 1288225 = 3058^2 + 1135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10639589 is a prime.

It is a super-2 number, since 2×10639589² = 226401708177842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10639583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5319794 + 5319795.

It is an arithmetic number, because the mean of its divisors is an integer number (5319795).

Almost surely, 2^10639589 is an apocalyptic number.

It is an amenable number.

10639589 is a deficient number, since it is larger than the sum of its proper divisors (1).

10639589 is an equidigital number, since it uses as much as digits as its factorization.

10639589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 10639589 is about 3261.8382853845. The cubic root of 10639589 is about 219.9420577436.

The spelling of 10639589 in words is "ten million, six hundred thirty-nine thousand, five hundred eighty-nine".