2652321 has 12 divisors (see below), whose sum is σ = 4114032. Its totient is φ = 1515528.

The previous prime is 2652313. The next prime is 2652367. The reversal of 2652321 is 1232562.

It is not a de Polignac number, because 2652321 - 2³ = 2652313 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (2652301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8875 + ... + 9168.

It is an arithmetic number, because the mean of its divisors is an integer number (342836).

2^2652321 is an apocalyptic number.

2652321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2652321 is a deficient number, since it is larger than the sum of its proper divisors (1461711).

2652321 is a wasteful number, since it uses less digits than its factorization.

2652321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18060 (or 18053 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 2652321 is about 1628.5947930655. The cubic root of 2652321 is about 138.4231393756.

Adding to 2652321 its reverse (1232562), we get a palindrome (3884883).

The spelling of 2652321 in words is "two million, six hundred fifty-two thousand, three hundred twenty-one".