76680013 has 8 divisors (see below), whose sum is σ = 81303480. Its totient is φ = 72069120.

The previous prime is 76680011. The next prime is 76680041. The reversal of 76680013 is 31008667.

It can be written as a sum of positive squares in 4 ways, for example, as 31561924 + 45118089 = 5618^2 + 6717^2 .

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

It is not a de Polignac number, because 76680013 - 2¹ = 76680011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76680011) 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 7 ways as a sum of consecutive naturals, for example, 11373 + ... + 16813.

It is an arithmetic number, because the mean of its divisors is an integer number (10162935).

Almost surely, 2^76680013 is an apocalyptic number.

It is an amenable number.

76680013 is a deficient number, since it is larger than the sum of its proper divisors (4623467).

76680013 is a wasteful number, since it uses less digits than its factorization.

76680013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6287.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 76680013 is about 8756.7124538836. The cubic root of 76680013 is about 424.8419490737.

The spelling of 76680013 in words is "seventy-six million, six hundred eighty thousand, thirteen".