5432721 has 16 divisors (see below), whose sum is σ = 8416128. Its totient is φ = 3052800.

The previous prime is 5432717. The next prime is 5432729. The reversal of 5432721 is 1272345.

It is not a de Polignac number, because 5432721 - 2² = 5432717 is a prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5432691 and 5432700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5432729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840 + ... + 3401.

It is an arithmetic number, because the mean of its divisors is an integer number (526008).

Almost surely, 2^5432721 is an apocalyptic number.

It is an amenable number.

5432721 is a deficient number, since it is larger than the sum of its proper divisors (2983407).

5432721 is a wasteful number, since it uses less digits than its factorization.

5432721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312.

The product of its digits is 1680, while the sum is 24.

The square root of 5432721 is about 2330.8198128556. The cubic root of 5432721 is about 175.7947094148.

The spelling of 5432721 in words is "five million, four hundred thirty-two thousand, seven hundred twenty-one".