11766487 has 2 divisors, whose sum is σ = 11766488. Its totient is φ = 11766486.

The previous prime is 11766479. The next prime is 11766493. The reversal of 11766487 is 78466711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11766487 - 2³ = 11766479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11766427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5883243 + 5883244.

It is an arithmetic number, because the mean of its divisors is an integer number (5883244).

Almost surely, 2^11766487 is an apocalyptic number.

11766487 is a deficient number, since it is larger than the sum of its proper divisors (1).

11766487 is an equidigital number, since it uses as much as digits as its factorization.

11766487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 40.

The square root of 11766487 is about 3430.2313333068. The cubic root of 11766487 is about 227.4480789615.

The spelling of 11766487 in words is "eleven million, seven hundred sixty-six thousand, four hundred eighty-seven".