871247613 has 8 divisors (see below), whose sum is σ = 1212170688. Its totient is φ = 555578144.

The previous prime is 871247599. The next prime is 871247617. The reversal of 871247613 is 316742178.

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

It is a cyclic number.

It is not a de Polignac number, because 871247613 - 2¹⁶ = 871182077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871247617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6313320 + ... + 6313457.

It is an arithmetic number, because the mean of its divisors is an integer number (151521336).

Almost surely, 2^871247613 is an apocalyptic number.

It is an amenable number.

871247613 is a deficient number, since it is larger than the sum of its proper divisors (340923075).

871247613 is a wasteful number, since it uses less digits than its factorization.

871247613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12626803.

The product of its digits is 56448, while the sum is 39.

The square root of 871247613 is about 29516.9038518609. The cubic root of 871247613 is about 955.0963830977.

It can be divided in two parts, 871247 and 613, that added together give a triangular number (871860 = T₁₃₂₀).

The spelling of 871247613 in words is "eight hundred seventy-one million, two hundred forty-seven thousand, six hundred thirteen".