2920688 has 20 divisors (see below), whose sum is σ = 5687880. Its totient is φ = 1452864.

The previous prime is 2920649. The next prime is 2920691. The reversal of 2920688 is 8860292.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4103 + ... + 4761.

It is an arithmetic number, because the mean of its divisors is an integer number (284394).

2^2920688 is an apocalyptic number.

2920688 is the 914-th centered heptagonal number.

It is an amenable number.

2920688 is a deficient number, since it is larger than the sum of its proper divisors (2767192).

2920688 is a wasteful number, since it uses less digits than its factorization.

2920688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 2920688 is about 1709.0020479800. The cubic root of 2920688 is about 142.9426147564.

The spelling of 2920688 in words is "two million, nine hundred twenty thousand, six hundred eighty-eight".