10871639 has 2 divisors, whose sum is σ = 10871640. Its totient is φ = 10871638.

The previous prime is 10871633. The next prime is 10871677. The reversal of 10871639 is 93617801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10871639 - 2¹² = 10867543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10871599 and 10871608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10871633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5435819 + 5435820.

It is an arithmetic number, because the mean of its divisors is an integer number (5435820).

Almost surely, 2^10871639 is an apocalyptic number.

10871639 is a deficient number, since it is larger than the sum of its proper divisors (1).

10871639 is an equidigital number, since it uses as much as digits as its factorization.

10871639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 10871639 is about 3297.2168566838. The cubic root of 10871639 is about 221.5295545934.

The spelling of 10871639 in words is "ten million, eight hundred seventy-one thousand, six hundred thirty-nine".