2324721 has 16 divisors (see below), whose sum is σ = 3657728. Its totient is φ = 1285200.

The previous prime is 2324711. The next prime is 2324731. The reversal of 2324721 is 1274232.

It is an interprime number because it is at equal distance from previous prime (2324711) and next prime (2324731).

It is not a de Polignac number, because 2324721 - 2¹⁰ = 2323697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2324701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1135 + ... + 2436.

It is an arithmetic number, because the mean of its divisors is an integer number (228608).

2^2324721 is an apocalyptic number.

2324721 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2324721 is a deficient number, since it is larger than the sum of its proper divisors (1333007).

2324721 is a wasteful number, since it uses less digits than its factorization.

2324721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612.

The product of its digits is 672, while the sum is 21.

The square root of 2324721 is about 1524.7035777488. The cubic root of 2324721 is about 132.4718535206.

Adding to 2324721 its reverse (1274232), we get a palindrome (3598953).

The spelling of 2324721 in words is "two million, three hundred twenty-four thousand, seven hundred twenty-one".