76616129 has 4 divisors (see below), whose sum is σ = 77406084. Its totient is φ = 75826176.

The previous prime is 76616123. The next prime is 76616143. The reversal of 76616129 is 92161667.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45535504 + 31080625 = 6748^2 + 5575^2 .

It is a cyclic number.

It is not a de Polignac number, because 76616129 - 2¹² = 76612033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76616092 and 76616101.

It is not an unprimeable number, because it can be changed into a prime (76616123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394832 + ... + 395025.

It is an arithmetic number, because the mean of its divisors is an integer number (19351521).

Almost surely, 2^76616129 is an apocalyptic number.

It is an amenable number.

76616129 is a deficient number, since it is larger than the sum of its proper divisors (789955).

76616129 is an equidigital number, since it uses as much as digits as its factorization.

76616129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789954.

The product of its digits is 27216, while the sum is 38.

The square root of 76616129 is about 8753.0639778308. The cubic root of 76616129 is about 424.7239342105.

The spelling of 76616129 in words is "seventy-six million, six hundred sixteen thousand, one hundred twenty-nine".