871803369 has 6 divisors (see below), whose sum is σ = 1259271546. Its totient is φ = 581202240.

The previous prime is 871803341. The next prime is 871803389. The reversal of 871803369 is 963308178.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 591073344 + 280730025 = 24312^2 + 16755^2 .

It is not a de Polignac number, because 871803369 - 2¹⁶ = 871737833 is a prime.

It is a super-2 number, since 2×871803369² = 1520082228399500322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (871803319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48433512 + ... + 48433529.

It is an arithmetic number, because the mean of its divisors is an integer number (209878591).

Almost surely, 2^871803369 is an apocalyptic number.

It is an amenable number.

871803369 is a deficient number, since it is larger than the sum of its proper divisors (387468177).

871803369 is a wasteful number, since it uses less digits than its factorization.

871803369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96867047 (or 96867044 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 871803369 is about 29526.3165498170. The cubic root of 871803369 is about 955.2994205635.

The spelling of 871803369 in words is "eight hundred seventy-one million, eight hundred three thousand, three hundred sixty-nine".