2159793 has 6 divisors (see below), whose sum is σ = 3119714. Its totient is φ = 1439856.

The previous prime is 2159789. The next prime is 2159809. The reversal of 2159793 is 3979512.

It can be written as a sum of positive squares in only one way, i.e., 1871424 + 288369 = 1368^2 + 537^2 .

It is not a de Polignac number, because 2159793 - 2² = 2159789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2159713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119980 + ... + 119997.

2^2159793 is an apocalyptic number.

It is an amenable number.

2159793 is a deficient number, since it is larger than the sum of its proper divisors (959921).

2159793 is a wasteful number, since it uses less digits than its factorization.

2159793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239983 (or 239980 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 2159793 is about 1469.6234211525. The cubic root of 2159793 is about 129.2619519368.

The spelling of 2159793 in words is "two million, one hundred fifty-nine thousand, seven hundred ninety-three".