6481378 has 16 divisors (see below), whose sum is σ = 9974016. Its totient is φ = 3157920.

The previous prime is 6481367. The next prime is 6481381. The reversal of 6481378 is 8731846.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14823 + ... + 15253.

It is an arithmetic number, because the mean of its divisors is an integer number (623376).

Almost surely, 2^6481378 is an apocalyptic number.

6481378 is a deficient number, since it is larger than the sum of its proper divisors (3492638).

6481378 is a wasteful number, since it uses less digits than its factorization.

6481378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609.

The product of its digits is 32256, while the sum is 37.

The square root of 6481378 is about 2545.8550626459. The cubic root of 6481378 is about 186.4471647490.

It can be divided in two parts, 6481 and 378, that added together give a cube (6859 = 19³).

The spelling of 6481378 in words is "six million, four hundred eighty-one thousand, three hundred seventy-eight".