77085011 has 2 divisors, whose sum is σ = 77085012. Its totient is φ = 77085010.

The previous prime is 77084999. The next prime is 77085013. The reversal of 77085011 is 11058077.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77085011 - 2¹⁴ = 77068627 is a prime.

Together with 77085013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (77085013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38542505 + 38542506.

It is an arithmetic number, because the mean of its divisors is an integer number (38542506).

Almost surely, 2^77085011 is an apocalyptic number.

77085011 is a deficient number, since it is larger than the sum of its proper divisors (1).

77085011 is an equidigital number, since it uses as much as digits as its factorization.

77085011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 29.

The square root of 77085011 is about 8779.8070024346. The cubic root of 77085011 is about 425.5885934620.

The spelling of 77085011 in words is "seventy-seven million, eighty-five thousand, eleven".