6381346 has 4 divisors (see below), whose sum is σ = 9572022. Its totient is φ = 3190672.

The previous prime is 6381343. The next prime is 6381371. The reversal of 6381346 is 6431836.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5359225 + 1022121 = 2315^2 + 1011^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6381343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1595335 + ... + 1595338.

Almost surely, 2^6381346 is an apocalyptic number.

6381346 is a deficient number, since it is larger than the sum of its proper divisors (3190676).

6381346 is a wasteful number, since it uses less digits than its factorization.

6381346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190675.

The product of its digits is 10368, while the sum is 31.

The square root of 6381346 is about 2526.1326172630. The cubic root of 6381346 is about 185.4829940600.

The spelling of 6381346 in words is "six million, three hundred eighty-one thousand, three hundred forty-six".