4298721 has 12 divisors (see below), whose sum is σ = 6667632. Its totient is φ = 2456328.

The previous prime is 4298713. The next prime is 4298729. The reversal of 4298721 is 1278924.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4298713) and next prime (4298729).

It is not a de Polignac number, because 4298721 - 2³ = 4298713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4298729) 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 11 ways as a sum of consecutive naturals, for example, 14475 + ... + 14768.

It is an arithmetic number, because the mean of its divisors is an integer number (555636).

Almost surely, 2^4298721 is an apocalyptic number.

It is an amenable number.

4298721 is a deficient number, since it is larger than the sum of its proper divisors (2368911).

4298721 is a wasteful number, since it uses less digits than its factorization.

4298721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29260 (or 29253 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 4298721 is about 2073.3357181122. The cubic root of 4298721 is about 162.5972088983.

The spelling of 4298721 in words is "four million, two hundred ninety-eight thousand, seven hundred twenty-one".