5721547 has 8 divisors (see below), whose sum is σ = 6222944. Its totient is φ = 5228928.

The previous prime is 5721539. The next prime is 5721557. The reversal of 5721547 is 7451275.

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

It is a cyclic number.

It is not a de Polignac number, because 5721547 - 2³ = 5721539 is a prime.

It is a super-2 number, since 2×5721547² = 65472200146418, which contains 22 as substring.

5721547 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5721517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798 + ... + 3475.

It is an arithmetic number, because the mean of its divisors is an integer number (777868).

Almost surely, 2^5721547 is an apocalyptic number.

5721547 is a deficient number, since it is larger than the sum of its proper divisors (501397).

5721547 is a wasteful number, since it uses less digits than its factorization.

5721547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4389.

The product of its digits is 9800, while the sum is 31.

The square root of 5721547 is about 2391.9755433532. The cubic root of 5721547 is about 178.8564020038.

The spelling of 5721547 in words is "five million, seven hundred twenty-one thousand, five hundred forty-seven".