673787 has 2 divisors, whose sum is σ = 673788. Its totient is φ = 673786.

The previous prime is 673781. The next prime is 673793. The reversal of 673787 is 787376.

It is a balanced prime because it is at equal distance from previous prime (673781) and next prime (673793).

It is a cyclic number.

It is not a de Polignac number, because 673787 - 2¹⁴ = 657403 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 673787.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 673787.

It is not a weakly prime, because it can be changed into another prime (673781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336893 + 336894.

It is an arithmetic number, because the mean of its divisors is an integer number (336894).

2⁶⁷³⁷⁸⁷ is an apocalyptic number.

673787 is a deficient number, since it is larger than the sum of its proper divisors (1).

673787 is an equidigital number, since it uses as much as digits as its factorization.

673787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49392, while the sum is 38.

The square root of 673787 is about 820.8452960211. The cubic root of 673787 is about 87.6679549577.

The spelling of 673787 in words is "six hundred seventy-three thousand, seven hundred eighty-seven".