76616663 has 2 divisors, whose sum is σ = 76616664. Its totient is φ = 76616662.

The previous prime is 76616647. The next prime is 76616689. The reversal of 76616663 is 36661667.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76616663 - 2⁴ = 76616647 is a prime.

It is a super-2 number, since 2×76616663² = 11740226098511138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76616663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76616623) 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, 38308331 + 38308332.

It is an arithmetic number, because the mean of its divisors is an integer number (38308332).

Almost surely, 2^76616663 is an apocalyptic number.

76616663 is a deficient number, since it is larger than the sum of its proper divisors (1).

76616663 is an equidigital number, since it uses as much as digits as its factorization.

76616663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 41.

The square root of 76616663 is about 8753.0944813820. The cubic root of 76616663 is about 424.7249209569.

The spelling of 76616663 in words is "seventy-six million, six hundred sixteen thousand, six hundred sixty-three".