4254721 has 4 divisors (see below), whose sum is σ = 4353712. Its totient is φ = 4155732.

The previous prime is 4254707. The next prime is 4254739. The reversal of 4254721 is 1274524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4254721 - 2¹⁵ = 4221953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4254821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49431 + ... + 49516.

It is an arithmetic number, because the mean of its divisors is an integer number (1088428).

Almost surely, 2^4254721 is an apocalyptic number.

It is an amenable number.

4254721 is a deficient number, since it is larger than the sum of its proper divisors (98991).

4254721 is an equidigital number, since it uses as much as digits as its factorization.

4254721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98990.

The product of its digits is 2240, while the sum is 25.

The square root of 4254721 is about 2062.6975056949. The cubic root of 4254721 is about 162.0405451531.

The spelling of 4254721 in words is "four million, two hundred fifty-four thousand, seven hundred twenty-one".