676787 has 8 divisors (see below), whose sum is σ = 734832. Its totient is φ = 620800.

The previous prime is 676771. The next prime is 676807. The reversal of 676787 is 787676.

676787 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 676787 - 2⁴ = 676771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

Its product of digits (98784) is a multiple of the sum of its prime divisors (1029).

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 676787.

It is not an unprimeable number, because it can be changed into a prime (676717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212 + ... + 1182.

It is an arithmetic number, because the mean of its divisors is an integer number (91854).

2⁶⁷⁶⁷⁸⁷ is an apocalyptic number.

676787 is a deficient number, since it is larger than the sum of its proper divisors (58045).

676787 is a wasteful number, since it uses less digits than its factorization.

676787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029.

The product of its digits is 98784, while the sum is 41.

The square root of 676787 is about 822.6706509898. The cubic root of 676787 is about 87.7978745964.

Subtracting 676787 from its reverse (787676), we obtain a square (110889 = 333²).

The spelling of 676787 in words is "six hundred seventy-six thousand, seven hundred eighty-seven".