869273387 has 4 divisors (see below), whose sum is σ = 897314496. Its totient is φ = 841232280.

The previous prime is 869273381. The next prime is 869273399. The reversal of 869273387 is 783372968.

It is a happy number.

869273387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 869273387 - 2¹⁴ = 869257003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869273381) 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, 14020508 + ... + 14020569.

It is an arithmetic number, because the mean of its divisors is an integer number (224328624).

Almost surely, 2^869273387 is an apocalyptic number.

869273387 is a deficient number, since it is larger than the sum of its proper divisors (28041109).

869273387 is a wasteful number, since it uses less digits than its factorization.

869273387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28041108.

The product of its digits is 3048192, while the sum is 53.

The square root of 869273387 is about 29483.4425907152. The cubic root of 869273387 is about 954.3744290850.

The spelling of 869273387 in words is "eight hundred sixty-nine million, two hundred seventy-three thousand, three hundred eighty-seven".