2789406 has 24 divisors (see below), whose sum is σ = 6074640. Its totient is φ = 925056.

The previous prime is 2789399. The next prime is 2789407. The reversal of 2789406 is 6049872.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2789407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6135 + ... + 6573.

It is an arithmetic number, because the mean of its divisors is an integer number (253110).

2^2789406 is an apocalyptic number.

2789406 is an abundant number, since it is smaller than the sum of its proper divisors (3285234).

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

2789406 is a wasteful number, since it uses less digits than its factorization.

2789406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2789406 is about 1670.1514901350. The cubic root of 2789406 is about 140.7679902591.

The spelling of 2789406 in words is "two million, seven hundred eighty-nine thousand, four hundred six".