76997827 has 2 divisors, whose sum is σ = 76997828. Its totient is φ = 76997826.

The previous prime is 76997801. The next prime is 76997857. The reversal of 76997827 is 72879967.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76997827 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76997857) 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, 38498913 + 38498914.

It is an arithmetic number, because the mean of its divisors is an integer number (38498914).

Almost surely, 2^76997827 is an apocalyptic number.

76997827 is a deficient number, since it is larger than the sum of its proper divisors (1).

76997827 is an equidigital number, since it uses as much as digits as its factorization.

76997827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2667168, while the sum is 55.

The square root of 76997827 is about 8774.8405683522. The cubic root of 76997827 is about 425.4280844655.

It can be divided in two parts, 769 and 97827, that added together give a square (98596 = 314²).

The spelling of 76997827 in words is "seventy-six million, nine hundred ninety-seven thousand, eight hundred twenty-seven".