2721066 has 16 divisors (see below), whose sum is σ = 5728800. Its totient is φ = 859248.

The previous prime is 2721053. The next prime is 2721067. The reversal of 2721066 is 6601272.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2721067) 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, 11821 + ... + 12048.

It is an arithmetic number, because the mean of its divisors is an integer number (358050).

2^2721066 is an apocalyptic number.

2721066 is an abundant number, since it is smaller than the sum of its proper divisors (3007734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2721066 is a wasteful number, since it uses less digits than its factorization.

2721066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23893.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2721066 is about 1649.5653973092. The cubic root of 2721066 is about 139.6088742946.

The spelling of 2721066 in words is "two million, seven hundred twenty-one thousand, sixty-six".