76063681 has 2 divisors, whose sum is σ = 76063682. Its totient is φ = 76063680.

The previous prime is 76063643. The next prime is 76063699. The reversal of 76063681 is 18636067.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76038400 + 25281 = 8720^2 + 159^2 .

It is a cyclic number.

It is not a de Polignac number, because 76063681 - 2²³ = 67675073 is a prime.

It is a super-2 number, since 2×76063681² = 11571367134539522, 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 76063681.

It is not a weakly prime, because it can be changed into another prime (76061681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38031840 + 38031841.

It is an arithmetic number, because the mean of its divisors is an integer number (38031841).

Almost surely, 2^76063681 is an apocalyptic number.

It is an amenable number.

76063681 is a deficient number, since it is larger than the sum of its proper divisors (1).

76063681 is an equidigital number, since it uses as much as digits as its factorization.

76063681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 76063681 is about 8721.4494781544. The cubic root of 76063681 is about 423.7006330646.

The spelling of 76063681 in words is "seventy-six million, sixty-three thousand, six hundred eighty-one".