770871 has 4 divisors (see below), whose sum is σ = 1027832. Its totient is φ = 513912.

The previous prime is 770867. The next prime is 770873. The reversal of 770871 is 178077.

770871 is nontrivially palindromic in base 5.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178077 = 3 ⋅59359.

It is not a de Polignac number, because 770871 - 2² = 770867 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128476 + ... + 128481.

It is an arithmetic number, because the mean of its divisors is an integer number (256958).

2⁷⁷⁰⁸⁷¹ is an apocalyptic number.

770871 is a deficient number, since it is larger than the sum of its proper divisors (256961).

770871 is a wasteful number, since it uses less digits than its factorization.

770871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256960.

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

The square root of 770871 is about 877.9925967797. The cubic root of 770871 is about 91.6911112035.

The spelling of 770871 in words is "seven hundred seventy thousand, eight hundred seventy-one".