871614551 has 4 divisors (see below), whose sum is σ = 872083272. Its totient is φ = 871145832.

The previous prime is 871614529. The next prime is 871614553. The reversal of 871614551 is 155416178.

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 871614551 - 2¹⁰ = 871613527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871614553) 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, 231560 + ... + 235293.

It is an arithmetic number, because the mean of its divisors is an integer number (218020818).

Almost surely, 2^871614551 is an apocalyptic number.

871614551 is a deficient number, since it is larger than the sum of its proper divisors (468721).

871614551 is a wasteful number, since it uses less digits than its factorization.

871614551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468720.

The product of its digits is 33600, while the sum is 38.

The square root of 871614551 is about 29523.1189239890. The cubic root of 871614551 is about 955.2304483020.

The spelling of 871614551 in words is "eight hundred seventy-one million, six hundred fourteen thousand, five hundred fifty-one".