2721427 has 8 divisors (see below), whose sum is σ = 2932160. Its totient is φ = 2517480.

The previous prime is 2721421. The next prime is 2721431. The reversal of 2721427 is 7241272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2721427 - 2³ = 2721419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2721421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849 + ... + 2482.

It is an arithmetic number, because the mean of its divisors is an integer number (366520).

2^2721427 is an apocalyptic number.

2721427 is a deficient number, since it is larger than the sum of its proper divisors (210733).

2721427 is a wasteful number, since it uses less digits than its factorization.

2721427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3393.

The product of its digits is 1568, while the sum is 25.

The square root of 2721427 is about 1649.6748164411. The cubic root of 2721427 is about 139.6150479259.

Adding to 2721427 its reverse (7241272), we get a palindrome (9962699).

The spelling of 2721427 in words is "two million, seven hundred twenty-one thousand, four hundred twenty-seven".