871303749 has 4 divisors (see below), whose sum is σ = 1161738336. Its totient is φ = 580869164.

The previous prime is 871303747. The next prime is 871303757. The reversal of 871303749 is 947303178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 871303749 - 2¹ = 871303747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 871303749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871303747) 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, 145217289 + ... + 145217294.

It is an arithmetic number, because the mean of its divisors is an integer number (290434584).

Almost surely, 2^871303749 is an apocalyptic number.

It is an amenable number.

871303749 is a deficient number, since it is larger than the sum of its proper divisors (290434587).

871303749 is a wasteful number, since it uses less digits than its factorization.

871303749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290434586.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 871303749 is about 29517.8547492869. The cubic root of 871303749 is about 955.1168954979.

The spelling of 871303749 in words is "eight hundred seventy-one million, three hundred three thousand, seven hundred forty-nine".