5429721 has 16 divisors (see below), whose sum is σ = 7962048. Its totient is φ = 3264000.

The previous prime is 5429719. The next prime is 5429729. The reversal of 5429721 is 1279245.

It is not a de Polignac number, because 5429721 - 2¹ = 5429719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5429729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3921 + ... + 5121.

It is an arithmetic number, because the mean of its divisors is an integer number (497628).

Almost surely, 2^5429721 is an apocalyptic number.

It is an amenable number.

5429721 is a deficient number, since it is larger than the sum of its proper divisors (2532327).

5429721 is a wasteful number, since it uses less digits than its factorization.

5429721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352.

The product of its digits is 5040, while the sum is 30.

The square root of 5429721 is about 2330.1761735972. The cubic root of 5429721 is about 175.7623449555.

The spelling of 5429721 in words is "five million, four hundred twenty-nine thousand, seven hundred twenty-one".