877081 has 4 divisors (see below), whose sum is σ = 928692. Its totient is φ = 825472.

The previous prime is 877073. The next prime is 877091. The reversal of 877081 is 180778.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 810000 + 67081 = 900^2 + 259^2 .

It is a cyclic number.

It is not a de Polignac number, because 877081 - 2³ = 877073 is a prime.

It is a super-2 number, since 2×877081² = 1538542161122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (877091) 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, 25780 + ... + 25813.

It is an arithmetic number, because the mean of its divisors is an integer number (232173).

2⁸⁷⁷⁰⁸¹ is an apocalyptic number.

It is an amenable number.

877081 is a deficient number, since it is larger than the sum of its proper divisors (51611).

877081 is a wasteful number, since it uses less digits than its factorization.

877081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51610.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 877081 is about 936.5260274013. The cubic root of 877081 is about 95.7223240552.

The spelling of 877081 in words is "eight hundred seventy-seven thousand, eighty-one".