77008071 has 16 divisors (see below), whose sum is σ = 122448384. Its totient is φ = 42091104.

The previous prime is 77008069. The next prime is 77008081. The reversal of 77008071 is 17080077.

It is not a de Polignac number, because 77008071 - 2¹ = 77008069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77008081) 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 15 ways as a sum of consecutive naturals, for example, 79236 + ... + 80201.

It is an arithmetic number, because the mean of its divisors is an integer number (7653024).

Almost surely, 2^77008071 is an apocalyptic number.

77008071 is a deficient number, since it is larger than the sum of its proper divisors (45440313).

77008071 is a wasteful number, since it uses less digits than its factorization.

77008071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159470.

The product of its (nonzero) digits is 2744, while the sum is 30.

The square root of 77008071 is about 8775.4242632479. The cubic root of 77008071 is about 425.4469503314.

The spelling of 77008071 in words is "seventy-seven million, eight thousand, seventy-one".