2789457 has 16 divisors (see below), whose sum is σ = 4093632. Its totient is φ = 1675520.

The previous prime is 2789441. The next prime is 2789459. The reversal of 2789457 is 7549872.

It is not a de Polignac number, because 2789457 - 2⁴ = 2789441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2789459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4213 + ... + 4829.

It is an arithmetic number, because the mean of its divisors is an integer number (255852).

2^2789457 is an apocalyptic number.

It is an amenable number.

2789457 is a deficient number, since it is larger than the sum of its proper divisors (1304175).

2789457 is a wasteful number, since it uses less digits than its factorization.

2789457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768.

The product of its digits is 141120, while the sum is 42.

The square root of 2789457 is about 1670.1667581412. The cubic root of 2789457 is about 140.7688481627.

The spelling of 2789457 in words is "two million, seven hundred eighty-nine thousand, four hundred fifty-seven".