6779340 has 36 divisors (see below), whose sum is σ = 20564544. Its totient is φ = 1807776.

The previous prime is 6779323. The next prime is 6779347. The reversal of 6779340 is 439776.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6779295 and 6779304.

It is not an unprimeable number, because it can be changed into a prime (6779347) 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 in 11 ways as a sum of consecutive naturals, for example, 18652 + ... + 19011.

Almost surely, 2^6779340 is an apocalyptic number.

6779340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6779340 is an abundant number, since it is smaller than the sum of its proper divisors (13785204).

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

6779340 is a wasteful number, since it uses less digits than its factorization.

6779340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37678 (or 37673 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 6779340 is about 2603.7165744374. The cubic root of 6779340 is about 189.2615845422.

The spelling of 6779340 in words is "six million, seven hundred seventy-nine thousand, three hundred forty".