2928143 has 4 divisors (see below), whose sum is σ = 3007320. Its totient is φ = 2848968.

The previous prime is 2928137. The next prime is 2928151. The reversal of 2928143 is 3418292.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2928143 - 2¹⁴ = 2911759 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 (2928113) 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, 39533 + ... + 39606.

It is an arithmetic number, because the mean of its divisors is an integer number (751830).

2^2928143 is an apocalyptic number.

2928143 is a deficient number, since it is larger than the sum of its proper divisors (79177).

2928143 is an equidigital number, since it uses as much as digits as its factorization.

2928143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79176.

The product of its digits is 3456, while the sum is 29.

The square root of 2928143 is about 1711.1817553960. The cubic root of 2928143 is about 143.0641308517.

The spelling of 2928143 in words is "two million, nine hundred twenty-eight thousand, one hundred forty-three".