6780115 has 8 divisors (see below), whose sum is σ = 8157168. Its totient is φ = 5410080.

The previous prime is 6780097. The next prime is 6780119. The reversal of 6780115 is 5110876.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6780115 - 2⁵ = 6780083 is a prime.

It is a Duffinian number.

6780115 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6780119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685 + ... + 3745.

It is an arithmetic number, because the mean of its divisors is an integer number (1019646).

Almost surely, 2^6780115 is an apocalyptic number.

6780115 is a deficient number, since it is larger than the sum of its proper divisors (1377053).

6780115 is a wasteful number, since it uses less digits than its factorization.

6780115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 6780115 is about 2603.8653959066. The cubic root of 6780115 is about 189.2687962638.

The spelling of 6780115 in words is "six million, seven hundred eighty thousand, one hundred fifteen".