10988639 has 2 divisors, whose sum is σ = 10988640. Its totient is φ = 10988638.

The previous prime is 10988623. The next prime is 10988657. The reversal of 10988639 is 93688901.

It is a weak prime.

It is an emirp because it is prime and its reverse (93688901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10988639 - 2⁴ = 10988623 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10988639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10988689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5494319 + 5494320.

It is an arithmetic number, because the mean of its divisors is an integer number (5494320).

Almost surely, 2^10988639 is an apocalyptic number.

10988639 is a deficient number, since it is larger than the sum of its proper divisors (1).

10988639 is an equidigital number, since it uses as much as digits as its factorization.

10988639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 10988639 is about 3314.9116126980. The cubic root of 10988639 is about 222.3214171132.

The spelling of 10988639 in words is "ten million, nine hundred eighty-eight thousand, six hundred thirty-nine".