2727021 has 16 divisors (see below), whose sum is σ = 4200768. Its totient is φ = 1555200.

The previous prime is 2727007. The next prime is 2727037. The reversal of 2727021 is 1207272.

It is not a de Polignac number, because 2727021 - 2⁵ = 2726989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2727121) 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, 1870 + ... + 2991.

It is an arithmetic number, because the mean of its divisors is an integer number (262548).

2^2727021 is an apocalyptic number.

It is an amenable number.

2727021 is a deficient number, since it is larger than the sum of its proper divisors (1473747).

2727021 is a wasteful number, since it uses less digits than its factorization.

2727021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4892.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 2727021 is about 1651.3694317142. The cubic root of 2727021 is about 139.7106438588.

The spelling of 2727021 in words is "two million, seven hundred twenty-seven thousand, twenty-one".