10639493 has 2 divisors, whose sum is σ = 10639494. Its totient is φ = 10639492.

The previous prime is 10639481. The next prime is 10639507. The reversal of 10639493 is 39493601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6770404 + 3869089 = 2602^2 + 1967^2 .

It is a cyclic number.

It is not a de Polignac number, because 10639493 - 2⁶ = 10639429 is a prime.

It is a super-2 number, since 2×10639493² = 226397622594098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10639463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5319746 + 5319747.

It is an arithmetic number, because the mean of its divisors is an integer number (5319747).

Almost surely, 2^10639493 is an apocalyptic number.

It is an amenable number.

10639493 is a deficient number, since it is larger than the sum of its proper divisors (1).

10639493 is an equidigital number, since it uses as much as digits as its factorization.

10639493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 10639493 is about 3261.8235697229. The cubic root of 10639493 is about 219.9413962362.

The spelling of 10639493 in words is "ten million, six hundred thirty-nine thousand, four hundred ninety-three".