2720906 has 16 divisors (see below), whose sum is σ = 4251744. Its totient is φ = 1304784.

The previous prime is 2720899. The next prime is 2720917. The reversal of 2720906 is 6090272.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5921 + ... + 6363.

It is an arithmetic number, because the mean of its divisors is an integer number (265734).

2^2720906 is an apocalyptic number.

2720906 is a deficient number, since it is larger than the sum of its proper divisors (1530838).

2720906 is a wasteful number, since it uses less digits than its factorization.

2720906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2720906 is about 1649.5168989738. The cubic root of 2720906 is about 139.6061378844.

The spelling of 2720906 in words is "two million, seven hundred twenty thousand, nine hundred six".