76661063 has 2 divisors, whose sum is σ = 76661064. Its totient is φ = 76661062.

The previous prime is 76661033. The next prime is 76661083. The reversal of 76661063 is 36016667.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76661063 - 2¹⁰ = 76660039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76661033) 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 as a sum of consecutive naturals, namely, 38330531 + 38330532.

It is an arithmetic number, because the mean of its divisors is an integer number (38330532).

Almost surely, 2^76661063 is an apocalyptic number.

76661063 is a deficient number, since it is larger than the sum of its proper divisors (1).

76661063 is an equidigital number, since it uses as much as digits as its factorization.

76661063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 76661063 is about 8755.6303599455. The cubic root of 76661063 is about 424.8069490004.

The spelling of 76661063 in words is "seventy-six million, six hundred sixty-one thousand, sixty-three".