2158793 has 12 divisors (see below), whose sum is σ = 2705220. Its totient is φ = 1707552.

The previous prime is 2158781. The next prime is 2158801. The reversal of 2158793 is 3978512.

It can be written as a sum of positive squares in 2 ways, for example, as 1317904 + 840889 = 1148^2 + 917^2 .

It is not a de Polignac number, because 2158793 - 2¹⁰ = 2157769 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 1 + 5³ + 8⁵ + 7 + 9⁶ + 3¹³ .

It is not an unprimeable number, because it can be changed into a prime (2158733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1058 + ... + 2331.

It is an arithmetic number, because the mean of its divisors is an integer number (225435).

2^2158793 is an apocalyptic number.

It is an amenable number.

2158793 is a deficient number, since it is larger than the sum of its proper divisors (546427).

2158793 is a wasteful number, since it uses less digits than its factorization.

2158793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416 (or 3409 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 2158793 is about 1469.2831585505. The cubic root of 2158793 is about 129.2419991131.

The spelling of 2158793 in words is "two million, one hundred fifty-eight thousand, seven hundred ninety-three".