76628329 has 2 divisors, whose sum is σ = 76628330. Its totient is φ = 76628328.

The previous prime is 76628327. The next prime is 76628429. The reversal of 76628329 is 92382667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61261929 + 15366400 = 7827^2 + 3920^2 .

It is a cyclic number.

It is not a de Polignac number, because 76628329 - 2¹ = 76628327 is a prime.

Together with 76628327, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (76628323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38314164 + 38314165.

It is an arithmetic number, because the mean of its divisors is an integer number (38314165).

Almost surely, 2^76628329 is an apocalyptic number.

It is an amenable number.

76628329 is a deficient number, since it is larger than the sum of its proper divisors (1).

76628329 is an equidigital number, since it uses as much as digits as its factorization.

76628329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 76628329 is about 8753.7608489152. The cubic root of 76628329 is about 424.7464767093.

The spelling of 76628329 in words is "seventy-six million, six hundred twenty-eight thousand, three hundred twenty-nine".