5407984521 has 15 divisors (see below), whose sum is σ = 8079582973. Its totient is φ = 3604881780.

The previous prime is 5407984513. The next prime is 5407984523. The reversal of 5407984521 is 1254897045.

The square root of 5407984521 is 73539.

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

5407984521 is a `hidden beast` number, since 5 + 40 + 7 + 9 + 84 + 521 = 666.

It is not a de Polignac number, because 5407984521 - 2³ = 5407984513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5407984523) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 657766 + ... + 665936.

Almost surely, 2^5407984521 is an apocalyptic number.

5407984521 is the 73539-th square number.

5407984521 is the 36770-th centered octagonal number.

It is an amenable number.

5407984521 is a deficient number, since it is larger than the sum of its proper divisors (2671598452).

5407984521 is an frugal number, since it uses more digits than its factorization.

5407984521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16354 (or 8174 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The cubic root of 5407984521 is about 1755.2749163893.

The spelling of 5407984521 in words is "five billion, four hundred seven million, nine hundred eighty-four thousand, five hundred twenty-one".