77068085 has 12 divisors (see below), whose sum is σ = 97607628. Its totient is φ = 58408128.

The previous prime is 77068081. The next prime is 77068097. The reversal of 77068085 is 58086077.

It can be written as a sum of positive squares in 2 ways, for example, as 18438436 + 58629649 = 4294^2 + 7657^2 .

It is not a de Polignac number, because 77068085 - 2² = 77068081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77068081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19544 + ... + 23153.

It is an arithmetic number, because the mean of its divisors is an integer number (8133969).

Almost surely, 2^77068085 is an apocalyptic number.

It is an amenable number.

77068085 is a deficient number, since it is larger than the sum of its proper divisors (20539543).

77068085 is a wasteful number, since it uses less digits than its factorization.

77068085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42740 (or 42721 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 77068085 is about 8778.8430331109. The cubic root of 77068085 is about 425.5574415353.

The spelling of 77068085 in words is "seventy-seven million, sixty-eight thousand, eighty-five".