871727345 has 4 divisors (see below), whose sum is σ = 1046072820. Its totient is φ = 697381872.

The previous prime is 871727341. The next prime is 871727357. The reversal of 871727345 is 543727178.

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

It can be written as a sum of positive squares in 2 ways, for example, as 267944161 + 603783184 = 16369^2 + 24572^2 .

It is a cyclic number.

It is not a de Polignac number, because 871727345 - 2² = 871727341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 871727296 and 871727305.

It is not an unprimeable number, because it can be changed into a prime (871727341) 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, 87172730 + ... + 87172739.

It is an arithmetic number, because the mean of its divisors is an integer number (261518205).

Almost surely, 2^871727345 is an apocalyptic number.

It is an amenable number.

871727345 is a deficient number, since it is larger than the sum of its proper divisors (174345475).

871727345 is a wasteful number, since it uses less digits than its factorization.

871727345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174345474.

The product of its digits is 329280, while the sum is 44.

The square root of 871727345 is about 29525.0291278434. The cubic root of 871727345 is about 955.2716513834.

The spelling of 871727345 in words is "eight hundred seventy-one million, seven hundred twenty-seven thousand, three hundred forty-five".