5456721 has 8 divisors (see below), whose sum is σ = 7413120. Its totient is φ = 3569072.

The previous prime is 5456719. The next prime is 5456729. The reversal of 5456721 is 1276545.

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 5456721 - 2¹ = 5456719 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (5456729) 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, 17001 + ... + 17318.

It is an arithmetic number, because the mean of its divisors is an integer number (926640).

Almost surely, 2^5456721 is an apocalyptic number.

It is an amenable number.

5456721 is a deficient number, since it is larger than the sum of its proper divisors (1956399).

5456721 is a wasteful number, since it uses less digits than its factorization.

5456721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34375.

The product of its digits is 8400, while the sum is 30.

The square root of 5456721 is about 2335.9625425079. The cubic root of 5456721 is about 176.0531971595.

The spelling of 5456721 in words is "five million, four hundred fifty-six thousand, seven hundred twenty-one".