6731378 has 8 divisors (see below), whose sum is σ = 10130268. Its totient is φ = 3354624.

The previous prime is 6731363. The next prime is 6731401. The reversal of 6731378 is 8731376.

It can be written as a sum of positive squares in 2 ways, for example, as 6692569 + 38809 = 2587^2 + 197^2 .

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

It is a super-2 number, since 2×6731378² = 90622899557768, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4751 + ... + 6002.

Almost surely, 2^6731378 is an apocalyptic number.

6731378 is a deficient number, since it is larger than the sum of its proper divisors (3398890).

6731378 is a wasteful number, since it uses less digits than its factorization.

6731378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11068.

The product of its digits is 21168, while the sum is 35.

The square root of 6731378 is about 2594.4899306029. The cubic root of 6731378 is about 188.8142029737.

The spelling of 6731378 in words is "six million, seven hundred thirty-one thousand, three hundred seventy-eight".