676428787 has 2 divisors, whose sum is σ = 676428788. Its totient is φ = 676428786.

The previous prime is 676428763. The next prime is 676428833. The reversal of 676428787 is 787824676.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-676428787 is a prime.

It is not a weakly prime, because it can be changed into another prime (676428287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338214393 + 338214394.

It is an arithmetic number, because the mean of its divisors is an integer number (338214394).

Almost surely, 2^676428787 is an apocalyptic number.

676428787 is a deficient number, since it is larger than the sum of its proper divisors (1).

676428787 is an equidigital number, since it uses as much as digits as its factorization.

676428787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6322176, while the sum is 55.

The square root of 676428787 is about 26008.2445966659. The cubic root of 676428787 is about 877.8238183895.

The spelling of 676428787 in words is "six hundred seventy-six million, four hundred twenty-eight thousand, seven hundred eighty-seven".