887384521 has 3 divisors (see below), whose sum is σ = 887414311. Its totient is φ = 887354732.

The previous prime is 887384489. The next prime is 887384591. The reversal of 887384521 is 125483788.

The square root of 887384521 is 29789.

It is a perfect power (a square), and thus also a powerful number.

887384521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 31236921 + 856147600 = 5589^2 + 29260^2 .

It is not a de Polignac number, because 887384521 - 2⁵ = 887384489 is a prime.

It is a super-2 number, since 2×887384521² = 1574902576220798882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (887384591) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 14895 + ... + 44683.

Almost surely, 2^887384521 is an apocalyptic number.

887384521 is the 29789-th square number.

887384521 is the 14895-th centered octagonal number.

It is an amenable number.

887384521 is a deficient number, since it is larger than the sum of its proper divisors (29790).

887384521 is an frugal number, since it uses more digits than its factorization.

887384521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59578 (or 29789 counting only the distinct ones).

The product of its digits is 430080, while the sum is 46.

The cubic root of 887384521 is about 960.9569887660.

The spelling of 887384521 in words is "eight hundred eighty-seven million, three hundred eighty-four thousand, five hundred twenty-one".