884289641 has 4 divisors (see below), whose sum is σ = 892402500. Its totient is φ = 876176784.

The previous prime is 884289619. The next prime is 884289647. The reversal of 884289641 is 146982488.

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 453519616 + 430770025 = 21296^2 + 20755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-884289641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 884289641.

It is not an unprimeable number, because it can be changed into a prime (884289647) 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, 4056266 + ... + 4056483.

It is an arithmetic number, because the mean of its divisors is an integer number (223100625).

Almost surely, 2^884289641 is an apocalyptic number.

It is an amenable number.

884289641 is a deficient number, since it is larger than the sum of its proper divisors (8112859).

884289641 is a wasteful number, since it uses less digits than its factorization.

884289641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8112858.

The product of its digits is 884736, while the sum is 50.

The square root of 884289641 is about 29737.0079362400. The cubic root of 884289641 is about 959.8385293383.

The spelling of 884289641 in words is "eight hundred eighty-four million, two hundred eighty-nine thousand, six hundred forty-one".