2143798 has 4 divisors (see below), whose sum is σ = 3215700. Its totient is φ = 1071898.

The previous prime is 2143793. The next prime is 2143829. The reversal of 2143798 is 8973412.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535948 + ... + 535951.

It is an arithmetic number, because the mean of its divisors is an integer number (803925).

2^2143798 is an apocalyptic number.

2143798 is a deficient number, since it is larger than the sum of its proper divisors (1071902).

2143798 is a wasteful number, since it uses less digits than its factorization.

2143798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071901.

The product of its digits is 12096, while the sum is 34.

The square root of 2143798 is about 1464.1714380495. The cubic root of 2143798 is about 128.9420648045.

The spelling of 2143798 in words is "two million, one hundred forty-three thousand, seven hundred ninety-eight".