671838376 has 16 divisors (see below), whose sum is σ = 1374215040. Its totient is φ = 305381040.

The previous prime is 671838371. The next prime is 671838379. The reversal of 671838376 is 673838176.

It is not an unprimeable number, because it can be changed into a prime (671838371) 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 in 3 ways as a sum of consecutive naturals, for example, 3817176 + ... + 3817351.

It is an arithmetic number, because the mean of its divisors is an integer number (85888440).

Almost surely, 2^671838376 is an apocalyptic number.

It is an amenable number.

671838376 is an abundant number, since it is smaller than the sum of its proper divisors (702376664).

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

671838376 is a wasteful number, since it uses less digits than its factorization.

671838376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7634544 (or 7634540 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 49.

The square root of 671838376 is about 25919.8452155872. The cubic root of 671838376 is about 875.8336005811.

The spelling of 671838376 in words is "six hundred seventy-one million, eight hundred thirty-eight thousand, three hundred seventy-six".