76608881 has 2 divisors, whose sum is σ = 76608882. Its totient is φ = 76608880.

The previous prime is 76608871. The next prime is 76608887. The reversal of 76608881 is 18880667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54893281 + 21715600 = 7409^2 + 4660^2 .

It is a cyclic number.

It is not a de Polignac number, because 76608881 - 2¹⁰ = 76607857 is a prime.

It is a super-2 number, since 2×76608881² = 11737841296144322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (76608887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38304440 + 38304441.

It is an arithmetic number, because the mean of its divisors is an integer number (38304441).

Almost surely, 2^76608881 is an apocalyptic number.

It is an amenable number.

76608881 is a deficient number, since it is larger than the sum of its proper divisors (1).

76608881 is an equidigital number, since it uses as much as digits as its factorization.

76608881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 76608881 is about 8752.6499415891. The cubic root of 76608881 is about 424.7105406158.

The spelling of 76608881 in words is "seventy-six million, six hundred eight thousand, eight hundred eighty-one".