11708531 has 2 divisors, whose sum is σ = 11708532. Its totient is φ = 11708530.

The previous prime is 11708507. The next prime is 11708533. The reversal of 11708531 is 13580711.

11708531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (13580711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11708531 is a prime.

It is a super-2 number, since 2×11708531² = 274179396355922, which contains 22 as substring.

Together with 11708533, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₇₇₀₁₅₆ and since 11708531 and 770156 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11708531.

It is not a weakly prime, because it can be changed into another prime (11708533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5854265 + 5854266.

It is an arithmetic number, because the mean of its divisors is an integer number (5854266).

Almost surely, 2^11708531 is an apocalyptic number.

11708531 is a deficient number, since it is larger than the sum of its proper divisors (1).

11708531 is an equidigital number, since it uses as much as digits as its factorization.

11708531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 11708531 is about 3421.7730783908. The cubic root of 11708531 is about 227.0740312399.

The spelling of 11708531 in words is "eleven million, seven hundred eight thousand, five hundred thirty-one".