6781416 has 16 divisors (see below), whose sum is σ = 16953600. Its totient is φ = 2260464.

The previous prime is 6781409. The next prime is 6781433. The reversal of 6781416 is 6141876.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141256 + ... + 141303.

It is an arithmetic number, because the mean of its divisors is an integer number (1059600).

Almost surely, 2^6781416 is an apocalyptic number.

It is an amenable number.

6781416 is an abundant number, since it is smaller than the sum of its proper divisors (10172184).

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

6781416 is a wasteful number, since it uses less digits than its factorization.

6781416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282568 (or 282564 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 6781416 is about 2604.1152048249. The cubic root of 6781416 is about 189.2809014152.

The spelling of 6781416 in words is "six million, seven hundred eighty-one thousand, four hundred sixteen".