6773640 has 64 divisors (see below), whose sum is σ = 20770560. Its totient is φ = 1766400.

The previous prime is 6773639. The next prime is 6773647. The reversal of 6773640 is 463776.

It is not an unprimeable number, because it can be changed into a prime (6773647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5040 + ... + 6240.

It is an arithmetic number, because the mean of its divisors is an integer number (324540).

Almost surely, 2^6773640 is an apocalyptic number.

6773640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6773640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10385280).

6773640 is an abundant number, since it is smaller than the sum of its proper divisors (13996920).

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

6773640 is a wasteful number, since it uses less digits than its factorization.

6773640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 6773640 is about 2602.6217550770. The cubic root of 6773640 is about 189.2085265985.

It can be divided in two parts, 67736 and 40, that added together give a palindrome (67776).

The spelling of 6773640 in words is "six million, seven hundred seventy-three thousand, six hundred forty".