5472721 has 4 divisors (see below), whose sum is σ = 5606244. Its totient is φ = 5339200.

The previous prime is 5472697. The next prime is 5472763. The reversal of 5472721 is 1272745.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3101121 + 2371600 = 1761^2 + 1540^2 .

It is a cyclic number.

It is not a de Polignac number, because 5472721 - 2¹⁵ = 5439953 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5472721.

It is not an unprimeable number, because it can be changed into a prime (5472221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66700 + ... + 66781.

It is an arithmetic number, because the mean of its divisors is an integer number (1401561).

Almost surely, 2^5472721 is an apocalyptic number.

It is an amenable number.

5472721 is a deficient number, since it is larger than the sum of its proper divisors (133523).

5472721 is a wasteful number, since it uses less digits than its factorization.

5472721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133522.

The product of its digits is 3920, while the sum is 28.

The square root of 5472721 is about 2339.3847481763. The cubic root of 5472721 is about 176.2251015245.

The spelling of 5472721 in words is "five million, four hundred seventy-two thousand, seven hundred twenty-one".