2942789 has 4 divisors (see below), whose sum is σ = 2953920. Its totient is φ = 2931660.

The previous prime is 2942783. The next prime is 2942809. The reversal of 2942789 is 9872492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2942789 - 2²⁰ = 1894213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2942783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5159 + ... + 5700.

It is an arithmetic number, because the mean of its divisors is an integer number (738480).

2^2942789 is an apocalyptic number.

It is an amenable number.

2942789 is a deficient number, since it is larger than the sum of its proper divisors (11131).

2942789 is a wasteful number, since it uses less digits than its factorization.

2942789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11130.

The product of its digits is 72576, while the sum is 41.

The square root of 2942789 is about 1715.4559160760. The cubic root of 2942789 is about 143.3022605559.

The spelling of 2942789 in words is "two million, nine hundred forty-two thousand, seven hundred eighty-nine".