2942893 has 4 divisors (see below), whose sum is σ = 2946460.
Its totient is φ = 2939328.
The previous prime is 2942881. The next prime is 2942909. The reversal of 2942893 is 3982492.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It can be written as a sum of positive squares in 2 ways, for example, as 1695204 + 1247689 = 1302^2 + 1117^2
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2942893 is a prime.
It is a d-powerful number, because it can be written as 219 + 9 + 49 + 221 + 8 + 95 + 35 .
It is a Duffinian number.
2942893 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2942843) 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, 163 + ... + 2431.
It is an arithmetic number, because the mean of its divisors is an integer number (736615).
22942893 is an apocalyptic number.
It is an amenable number.
2942893 is a deficient number, since it is larger than the sum of its proper divisors (3567).
2942893 is a wasteful number, since it uses less digits than its factorization.
2942893 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3566.
The product of its digits is 31104, while the sum is 37.
The square root of 2942893 is about 1715.4862284495.
The cubic root of 2942893 is about 143.3039486665.
The spelling of 2942893 in words is "two million, nine hundred forty-two thousand, eight hundred ninety-three".