673788 has 12 divisors (see below), whose sum is σ = 1572200. Its totient is φ = 224592.

The previous prime is 673787. The next prime is 673793. The reversal of 673788 is 887376.

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28063 + ... + 28086.

2⁶⁷³⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

673788 is an abundant number, since it is smaller than the sum of its proper divisors (898412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673788 is a wasteful number, since it uses less digits than its factorization.

673788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56156 (or 56154 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 673788 is about 820.8459051491. The cubic root of 673788 is about 87.6679983284.

Adding to 673788 its product of digits (56448), we get a triangular number (730236 = T₁₂₀₈).

The spelling of 673788 in words is "six hundred seventy-three thousand, seven hundred eighty-eight".