11708639 has 2 divisors, whose sum is σ = 11708640. Its totient is φ = 11708638.

The previous prime is 11708629. The next prime is 11708651. The reversal of 11708639 is 93680711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11708639 - 2⁸ = 11708383 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11708599 and 11708608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11708629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5854319 + 5854320.

It is an arithmetic number, because the mean of its divisors is an integer number (5854320).

Almost surely, 2^11708639 is an apocalyptic number.

11708639 is a deficient number, since it is larger than the sum of its proper divisors (1).

11708639 is an equidigital number, since it uses as much as digits as its factorization.

11708639 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 11708639 is about 3421.7888596464. The cubic root of 11708639 is about 227.0747294180.

The spelling of 11708639 in words is "eleven million, seven hundred eight thousand, six hundred thirty-nine".