877351121 has 4 divisors (see below), whose sum is σ = 878073252. Its totient is φ = 876628992.

The previous prime is 877351117. The next prime is 877351133. The reversal of 877351121 is 121153778.

It is a happy number.

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 110670400 + 766680721 = 10520^2 + 27689^2 .

It is a cyclic number.

It is not a de Polignac number, because 877351121 - 2² = 877351117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (877351621) 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 3 ways as a sum of consecutive naturals, for example, 359240 + ... + 361673.

It is an arithmetic number, because the mean of its divisors is an integer number (219518313).

Almost surely, 2^877351121 is an apocalyptic number.

It is an amenable number.

877351121 is a deficient number, since it is larger than the sum of its proper divisors (722131).

877351121 is a wasteful number, since it uses less digits than its factorization.

877351121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722130.

The product of its digits is 11760, while the sum is 35.

The square root of 877351121 is about 29620.1134535302. The cubic root of 877351121 is about 957.3214981280.

The spelling of 877351121 in words is "eight hundred seventy-seven million, three hundred fifty-one thousand, one hundred twenty-one".