2164393 has 8 divisors (see below), whose sum is σ = 2698560. Its totient is φ = 1686480.

The previous prime is 2164387. The next prime is 2164399. The reversal of 2164393 is 3934612.

It is an interprime number because it is at equal distance from previous prime (2164387) and next prime (2164399).

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 2164393 - 2⁹ = 2163881 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2164399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13978 + ... + 14131.

It is an arithmetic number, because the mean of its divisors is an integer number (337320).

2^2164393 is an apocalyptic number.

It is an amenable number.

2164393 is a deficient number, since it is larger than the sum of its proper divisors (534167).

2164393 is a wasteful number, since it uses less digits than its factorization.

2164393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28127.

The product of its digits is 3888, while the sum is 28.

The square root of 2164393 is about 1471.1876154998. The cubic root of 2164393 is about 129.3536556852.

It can be divided in two parts, 21643 and 93, that added together give a triangular number (21736 = T₂₀₈).

The spelling of 2164393 in words is "two million, one hundred sixty-four thousand, three hundred ninety-three".