4362721 has 8 divisors (see below), whose sum is σ = 4774464. Its totient is φ = 3953520.

The previous prime is 4362719. The next prime is 4362739. The reversal of 4362721 is 1272634.

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 4362721 - 2¹ = 4362719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4362751) 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, 6420 + ... + 7066.

It is an arithmetic number, because the mean of its divisors is an integer number (596808).

Almost surely, 2^4362721 is an apocalyptic number.

It is an amenable number.

4362721 is a deficient number, since it is larger than the sum of its proper divisors (411743).

4362721 is a wasteful number, since it uses less digits than its factorization.

4362721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271.

The product of its digits is 2016, while the sum is 25.

The square root of 4362721 is about 2088.7127614873. The cubic root of 4362721 is about 163.4001610012.

It can be divided in two parts, 43 and 62721, that multiplied together give a triangular number (2697003 = T₂₃₂₂).

The spelling of 4362721 in words is "four million, three hundred sixty-two thousand, seven hundred twenty-one".