76655641 has 2 divisors, whose sum is σ = 76655642. Its totient is φ = 76655640.

The previous prime is 76655629. The next prime is 76655681. The reversal of 76655641 is 14655667.

It is an a-pointer prime, because the next prime (76655681) can be obtained adding 76655641 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42771600 + 33884041 = 6540^2 + 5821^2 .

It is a cyclic number.

It is not a de Polignac number, because 76655641 - 2¹¹ = 76653593 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 76655594 and 76655603.

It is not a weakly prime, because it can be changed into another prime (76655681) 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, 38327820 + 38327821.

It is an arithmetic number, because the mean of its divisors is an integer number (38327821).

Almost surely, 2^76655641 is an apocalyptic number.

It is an amenable number.

76655641 is a deficient number, since it is larger than the sum of its proper divisors (1).

76655641 is an equidigital number, since it uses as much as digits as its factorization.

76655641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 40.

The square root of 76655641 is about 8755.3207251362. The cubic root of 76655641 is about 424.7969336702.

The spelling of 76655641 in words is "seventy-six million, six hundred fifty-five thousand, six hundred forty-one".