76705987 has 2 divisors, whose sum is σ = 76705988. Its totient is φ = 76705986.

The previous prime is 76705963. The next prime is 76706011. The reversal of 76705987 is 78950767.

It is a balanced prime because it is at equal distance from previous prime (76705963) and next prime (76706011).

It is a cyclic number.

It is not a de Polignac number, because 76705987 - 2⁷ = 76705859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76705987.

It is not a weakly prime, because it can be changed into another prime (76703987) 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, 38352993 + 38352994.

It is an arithmetic number, because the mean of its divisors is an integer number (38352994).

Almost surely, 2^76705987 is an apocalyptic number.

76705987 is a deficient number, since it is larger than the sum of its proper divisors (1).

76705987 is an equidigital number, since it uses as much as digits as its factorization.

76705987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 49.

The square root of 76705987 is about 8758.1954191489. The cubic root of 76705987 is about 424.8899128939.

The spelling of 76705987 in words is "seventy-six million, seven hundred five thousand, nine hundred eighty-seven".