869911377 has 4 divisors (see below), whose sum is σ = 1159881840. Its totient is φ = 579940916.

The previous prime is 869911373. The next prime is 869911381. The reversal of 869911377 is 773119968.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (869911373) and next prime (869911381).

It is a cyclic number.

It is not a de Polignac number, because 869911377 - 2² = 869911373 is a prime.

It is a super-2 number, since 2×869911377² = 1513491607668072258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (869911373) 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, 144985227 + ... + 144985232.

It is an arithmetic number, because the mean of its divisors is an integer number (289970460).

Almost surely, 2^869911377 is an apocalyptic number.

It is an amenable number.

869911377 is a deficient number, since it is larger than the sum of its proper divisors (289970463).

869911377 is a wasteful number, since it uses less digits than its factorization.

869911377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289970462.

The product of its digits is 571536, while the sum is 51.

The square root of 869911377 is about 29494.2600686981. The cubic root of 869911377 is about 954.6078548603.

The spelling of 869911377 in words is "eight hundred sixty-nine million, nine hundred eleven thousand, three hundred seventy-seven".