77085071 has 8 divisors (see below), whose sum is σ = 92734080. Its totient is φ = 62595288.

The previous prime is 77085067. The next prime is 77085131. The reversal of 77085071 is 17058077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77085071 - 2² = 77085067 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 (77085011) 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 in 7 ways as a sum of consecutive naturals, for example, 289661 + ... + 289926.

It is an arithmetic number, because the mean of its divisors is an integer number (11591760).

Almost surely, 2^77085071 is an apocalyptic number.

77085071 is a deficient number, since it is larger than the sum of its proper divisors (15649009).

77085071 is a wasteful number, since it uses less digits than its factorization.

77085071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579613.

The product of its (nonzero) digits is 13720, while the sum is 35.

The square root of 77085071 is about 8779.8104193656. The cubic root of 77085071 is about 425.5887038825.

The spelling of 77085071 in words is "seventy-seven million, eighty-five thousand, seventy-one".