5421087447 has 8 divisors (see below), whose sum is σ = 7231628544. Its totient is φ = 3612302328.

The previous prime is 5421087409. The next prime is 5421087491. The reversal of 5421087447 is 7447801245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5421087447 - 2⁷ = 5421087319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5421087399 and 5421087408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421087047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431773 + ... + 444150.

It is an arithmetic number, because the mean of its divisors is an integer number (903953568).

Almost surely, 2^5421087447 is an apocalyptic number.

5421087447 is a deficient number, since it is larger than the sum of its proper divisors (1810541097).

5421087447 is a wasteful number, since it uses less digits than its factorization.

5421087447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877989.

The product of its (nonzero) digits is 250880, while the sum is 42.

The square root of 5421087447 is about 73628.0343822922. The cubic root of 5421087447 is about 1756.6913829351.

The spelling of 5421087447 in words is "five billion, four hundred twenty-one million, eighty-seven thousand, four hundred forty-seven".