2321601 has 4 divisors (see below), whose sum is σ = 3095472. Its totient is φ = 1547732.

The previous prime is 2321587. The next prime is 2321603. The reversal of 2321601 is 1061232.

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 2321601 - 2⁹ = 2321089 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2321603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386931 + ... + 386936.

It is an arithmetic number, because the mean of its divisors is an integer number (773868).

2^2321601 is an apocalyptic number.

It is an amenable number.

2321601 is a deficient number, since it is larger than the sum of its proper divisors (773871).

2321601 is an equidigital number, since it uses as much as digits as its factorization.

2321601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773870.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2321601 is about 1523.6800845322. The cubic root of 2321601 is about 132.4125636499.

Adding to 2321601 its reverse (1061232), we get a palindrome (3382833).

The spelling of 2321601 in words is "two million, three hundred twenty-one thousand, six hundred one".