6780673 has 4 divisors (see below), whose sum is σ = 6824020. Its totient is φ = 6737328.

The previous prime is 6780629. The next prime is 6780679. The reversal of 6780673 is 3760876.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 861184 + 5919489 = 928^2 + 2433^2 .

It is a cyclic number.

It is not a de Polignac number, because 6780673 - 2¹³ = 6772481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6780679) 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, 21438 + ... + 21751.

It is an arithmetic number, because the mean of its divisors is an integer number (1706005).

Almost surely, 2^6780673 is an apocalyptic number.

It is an amenable number.

6780673 is a deficient number, since it is larger than the sum of its proper divisors (43347).

6780673 is a wasteful number, since it uses less digits than its factorization.

6780673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43346.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 6780673 is about 2603.9725420979. The cubic root of 6780673 is about 189.2739883631.

The spelling of 6780673 in words is "six million, seven hundred eighty thousand, six hundred seventy-three".