76866653 has 2 divisors, whose sum is σ = 76866654. Its totient is φ = 76866652.

The previous prime is 76866641. The next prime is 76866661. The reversal of 76866653 is 35666867.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56957209 + 19909444 = 7547^2 + 4462^2 .

It is a cyclic number.

It is not a de Polignac number, because 76866653 - 2⁴ = 76866637 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 76866598 and 76866607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76866683) 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, 38433326 + 38433327.

It is an arithmetic number, because the mean of its divisors is an integer number (38433327).

Almost surely, 2^76866653 is an apocalyptic number.

It is an amenable number.

76866653 is a deficient number, since it is larger than the sum of its proper divisors (1).

76866653 is an equidigital number, since it uses as much as digits as its factorization.

76866653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 47.

The square root of 76866653 is about 8767.3629444663. The cubic root of 76866653 is about 425.1863597930.

The spelling of 76866653 in words is "seventy-six million, eight hundred sixty-six thousand, six hundred fifty-three".