884731645 has 16 divisors (see below), whose sum is σ = 1226983680. Its totient is φ = 599854464.

The previous prime is 884731643. The next prime is 884731669. The reversal of 884731645 is 546137488.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 884731645 - 2¹ = 884731643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 884731595 and 884731604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (884731643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138897 + ... + 145126.

It is an arithmetic number, because the mean of its divisors is an integer number (76686480).

Almost surely, 2^884731645 is an apocalyptic number.

It is an amenable number.

884731645 is a deficient number, since it is larger than the sum of its proper divisors (342252035).

884731645 is a wasteful number, since it uses less digits than its factorization.

884731645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284124.

The product of its digits is 645120, while the sum is 46.

The square root of 884731645 is about 29744.4388920013. The cubic root of 884731645 is about 959.9984248383.

The spelling of 884731645 in words is "eight hundred eighty-four million, seven hundred thirty-one thousand, six hundred forty-five".