2143967 has 8 divisors (see below), whose sum is σ = 2490912. Its totient is φ = 1807200.

The previous prime is 2143963. The next prime is 2143969. The reversal of 2143967 is 7693412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2143967 - 2² = 2143963 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 (2143963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2084 + ... + 2937.

It is an arithmetic number, because the mean of its divisors is an integer number (311364).

2^2143967 is an apocalyptic number.

2143967 is a deficient number, since it is larger than the sum of its proper divisors (346945).

2143967 is an equidigital number, since it uses as much as digits as its factorization.

2143967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5089.

The product of its digits is 9072, while the sum is 32.

The square root of 2143967 is about 1464.2291487332. The cubic root of 2143967 is about 128.9454529714.

The spelling of 2143967 in words is "two million, one hundred forty-three thousand, nine hundred sixty-seven".