681176379 has 16 divisors (see below), whose sum is σ = 982420992. Its totient is φ = 417333408.

The previous prime is 681176369. The next prime is 681176381. The reversal of 681176379 is 973671186.

It is a happy number.

It is not a de Polignac number, because 681176379 - 2⁵ = 681176347 is a prime.

681176379 is a modest number, since divided by 176379 gives 681 as remainder.

It is not an unprimeable number, because it can be changed into a prime (681176329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29619 + ... + 47324.

It is an arithmetic number, because the mean of its divisors is an integer number (61401312).

Almost surely, 2^681176379 is an apocalyptic number.

681176379 is a deficient number, since it is larger than the sum of its proper divisors (301244613).

681176379 is a wasteful number, since it uses less digits than its factorization.

681176379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77186.

The product of its digits is 381024, while the sum is 48.

The square root of 681176379 is about 26099.3559115929. The cubic root of 681176379 is about 879.8727342644.

The spelling of 681176379 in words is "six hundred eighty-one million, one hundred seventy-six thousand, three hundred seventy-nine".