2721301 has 4 divisors (see below), whose sum is σ = 2968704. Its totient is φ = 2473900.

The previous prime is 2721259. The next prime is 2721307. The reversal of 2721301 is 1031272.

It is a happy number.

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 not a de Polignac number, because 2721301 - 2⁹ = 2720789 is a prime.

It is a Duffinian number.

2721301 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721307) 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, 123685 + ... + 123706.

It is an arithmetic number, because the mean of its divisors is an integer number (742176).

2^2721301 is an apocalyptic number.

It is an amenable number.

2721301 is a deficient number, since it is larger than the sum of its proper divisors (247403).

2721301 is a wasteful number, since it uses less digits than its factorization.

2721301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247402.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2721301 is about 1649.6366266545. The cubic root of 2721301 is about 139.6128932025.

Adding to 2721301 its reverse (1031272), we get a palindrome (3752573).

The spelling of 2721301 in words is "two million, seven hundred twenty-one thousand, three hundred one".