77761027 has 2 divisors, whose sum is σ = 77761028. Its totient is φ = 77761026.

The previous prime is 77761003. The next prime is 77761049. The reversal of 77761027 is 72016777.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77761027 - 2²³ = 69372419 is a prime.

It is not a weakly prime, because it can be changed into another prime (77761067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38880513 + 38880514.

It is an arithmetic number, because the mean of its divisors is an integer number (38880514).

Almost surely, 2^77761027 is an apocalyptic number.

77761027 is a deficient number, since it is larger than the sum of its proper divisors (1).

77761027 is an equidigital number, since it uses as much as digits as its factorization.

77761027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28812, while the sum is 37.

The square root of 77761027 is about 8818.2213059097. The cubic root of 77761027 is about 426.8290756095.

The spelling of 77761027 in words is "seventy-seven million, seven hundred sixty-one thousand, twenty-seven".