655675387 has 2 divisors, whose sum is σ = 655675388. Its totient is φ = 655675386.

The previous prime is 655675379. The next prime is 655675417. The reversal of 655675387 is 783576556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655675387 - 2³ = 655675379 is a prime.

It is not a weakly prime, because it can be changed into another prime (655675367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327837693 + 327837694.

It is an arithmetic number, because the mean of its divisors is an integer number (327837694).

Almost surely, 2^655675387 is an apocalyptic number.

655675387 is a deficient number, since it is larger than the sum of its proper divisors (1).

655675387 is an equidigital number, since it uses as much as digits as its factorization.

655675387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292000, while the sum is 52.

The square root of 655675387 is about 25606.1591614205. The cubic root of 655675387 is about 868.7529528599.

The spelling of 655675387 in words is "six hundred fifty-five million, six hundred seventy-five thousand, three hundred eighty-seven".