2720066 has 16 divisors (see below), whose sum is σ = 4230144. Its totient is φ = 1311024.

The previous prime is 2720009. The next prime is 2720071. The reversal of 2720066 is 6600272.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6911 + ... + 7293.

It is an arithmetic number, because the mean of its divisors is an integer number (264384).

2^2720066 is an apocalyptic number.

2720066 is a deficient number, since it is larger than the sum of its proper divisors (1510078).

2720066 is a wasteful number, since it uses less digits than its factorization.

2720066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 2720066 is about 1649.2622593148. The cubic root of 2720066 is about 139.5917699710.

The spelling of 2720066 in words is "two million, seven hundred twenty thousand, sixty-six".