11709487 has 2 divisors, whose sum is σ = 11709488. Its totient is φ = 11709486.

The previous prime is 11709479. The next prime is 11709517. The reversal of 11709487 is 78490711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11709487 - 2³ = 11709479 is a prime.

It is a super-2 number, since 2×11709487² = 274224171606338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11709407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5854743 + 5854744.

It is an arithmetic number, because the mean of its divisors is an integer number (5854744).

Almost surely, 2^11709487 is an apocalyptic number.

11709487 is a deficient number, since it is larger than the sum of its proper divisors (1).

11709487 is an equidigital number, since it uses as much as digits as its factorization.

11709487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 11709487 is about 3421.9127691980. The cubic root of 11709487 is about 227.0802112599.

The spelling of 11709487 in words is "eleven million, seven hundred nine thousand, four hundred eighty-seven".