10639879 has 2 divisors, whose sum is σ = 10639880. Its totient is φ = 10639878.

The previous prime is 10639873. The next prime is 10639891. The reversal of 10639879 is 97893601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10639879 - 2⁷ = 10639751 is a prime.

It is a super-2 number, since 2×10639879² = 226414050269282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10639873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5319939 + 5319940.

It is an arithmetic number, because the mean of its divisors is an integer number (5319940).

Almost surely, 2^10639879 is an apocalyptic number.

10639879 is a deficient number, since it is larger than the sum of its proper divisors (1).

10639879 is an equidigital number, since it uses as much as digits as its factorization.

10639879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 10639879 is about 3261.8827385423. The cubic root of 10639879 is about 219.9440560231.

The spelling of 10639879 in words is "ten million, six hundred thirty-nine thousand, eight hundred seventy-nine".