681079003 has 12 divisors (see below), whose sum is σ = 761579784. Its totient is φ = 604044800.

The previous prime is 681078989. The next prime is 681079027. The reversal of 681079003 is 300970186.

It is not a de Polignac number, because 681079003 - 2⁵ = 681078971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 681079003.

It is not an unprimeable number, because it can be changed into a prime (681079033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75 + ... + 36907.

It is an arithmetic number, because the mean of its divisors is an integer number (63464982).

Almost surely, 2^681079003 is an apocalyptic number.

681079003 is a deficient number, since it is larger than the sum of its proper divisors (80500781).

681079003 is a wasteful number, since it uses less digits than its factorization.

681079003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36926 (or 36885 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 681079003 is about 26097.4903582701. The cubic root of 681079003 is about 879.8308055399.

The spelling of 681079003 in words is "six hundred eighty-one million, seventy-nine thousand, three".