655486787 has 2 divisors, whose sum is σ = 655486788. Its totient is φ = 655486786.

The previous prime is 655486763. The next prime is 655486801. The reversal of 655486787 is 787684556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655486787 - 2²² = 651292483 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (655486717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327743393 + 327743394.

It is an arithmetic number, because the mean of its divisors is an integer number (327743394).

Almost surely, 2^655486787 is an apocalyptic number.

655486787 is a deficient number, since it is larger than the sum of its proper divisors (1).

655486787 is an equidigital number, since it uses as much as digits as its factorization.

655486787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11289600, while the sum is 56.

The square root of 655486787 is about 25602.4761888377. The cubic root of 655486787 is about 868.6696481625.

The spelling of 655486787 in words is "six hundred fifty-five million, four hundred eighty-six thousand, seven hundred eighty-seven".