871652434 has 4 divisors (see below), whose sum is σ = 1307478654. Its totient is φ = 435826216.

The previous prime is 871652429. The next prime is 871652447. The reversal of 871652434 is 434256178.

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

It can be written as a sum of positive squares in only one way, i.e., 817674025 + 53978409 = 28595^2 + 7347^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217913107 + ... + 217913110.

Almost surely, 2^871652434 is an apocalyptic number.

871652434 is a deficient number, since it is larger than the sum of its proper divisors (435826220).

871652434 is a wasteful number, since it uses less digits than its factorization.

871652434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435826219.

The product of its digits is 161280, while the sum is 40.

The square root of 871652434 is about 29523.7604989608. The cubic root of 871652434 is about 955.2442871680.

The spelling of 871652434 in words is "eight hundred seventy-one million, six hundred fifty-two thousand, four hundred thirty-four".