2720606 has 16 divisors (see below), whose sum is σ = 4825440. Its totient is φ = 1125600.

The previous prime is 2720603. The next prime is 2720609. The reversal of 2720606 is 6060272.

It is a happy number.

2720606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2720603) and next prime (2720609).

It is an Ulam number.

2720606 is a modest number, since divided by 606 gives 272 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2945 + ... + 3756.

It is an arithmetic number, because the mean of its divisors is an integer number (301590).

2^2720606 is an apocalyptic number.

2720606 is a deficient number, since it is larger than the sum of its proper divisors (2104834).

2720606 is a wasteful number, since it uses less digits than its factorization.

2720606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6739.

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

The square root of 2720606 is about 1649.4259607512. The cubic root of 2720606 is about 139.6010068263.

Adding to 2720606 its reverse (6060272), we get a palindrome (8780878).

The spelling of 2720606 in words is "two million, seven hundred twenty thousand, six hundred six".