877379161 has 4 divisors (see below), whose sum is σ = 877503924. Its totient is φ = 877254400.

The previous prime is 877379149. The next prime is 877379201. The reversal of 877379161 is 161973778.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161973778 = 2 ⋅80986889.

It can be written as a sum of positive squares in 2 ways, for example, as 797723536 + 79655625 = 28244^2 + 8925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-877379161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (877379101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51160 + ... + 66121.

It is an arithmetic number, because the mean of its divisors is an integer number (219375981).

Almost surely, 2^877379161 is an apocalyptic number.

It is an amenable number.

877379161 is a deficient number, since it is larger than the sum of its proper divisors (124763).

877379161 is a wasteful number, since it uses less digits than its factorization.

877379161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124762.

The product of its digits is 444528, while the sum is 49.

The square root of 877379161 is about 29620.5867767673. The cubic root of 877379161 is about 957.3316966328.

The spelling of 877379161 in words is "eight hundred seventy-seven million, three hundred seventy-nine thousand, one hundred sixty-one".