869667385 has 8 divisors (see below), whose sum is σ = 1104989256. Its totient is φ = 654808320.

The previous prime is 869667377. The next prime is 869667401. The reversal of 869667385 is 583766968.

869667385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 109893289 + 759774096 = 10483^2 + 27564^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 869667385 - 2³ = 869667377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5115606 + ... + 5115775.

It is an arithmetic number, because the mean of its divisors is an integer number (138123657).

Almost surely, 2^869667385 is an apocalyptic number.

869667385 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

869667385 is a deficient number, since it is larger than the sum of its proper divisors (235321871).

869667385 is a wasteful number, since it uses less digits than its factorization.

869667385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10231403.

The product of its digits is 13063680, while the sum is 58.

The square root of 869667385 is about 29490.1235161876. The cubic root of 869667385 is about 954.5185973162.

The spelling of 869667385 in words is "eight hundred sixty-nine million, six hundred sixty-seven thousand, three hundred eighty-five".