2170023 has 8 divisors (see below), whose sum is σ = 2905200. Its totient is φ = 1440768.

The previous prime is 2169997. The next prime is 2170039. The reversal of 2170023 is 3200712.

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

It is not a de Polignac number, because 2170023 - 2⁵ = 2169991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2169984 and 2170011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170043) 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, 538 + ... + 2151.

It is an arithmetic number, because the mean of its divisors is an integer number (363150).

2^2170023 is an apocalyptic number.

2170023 is a deficient number, since it is larger than the sum of its proper divisors (735177).

2170023 is a wasteful number, since it uses less digits than its factorization.

2170023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 2170023 is about 1473.0997929536. The cubic root of 2170023 is about 129.4657164406.

Adding to 2170023 its reverse (3200712), we get a palindrome (5370735).

The spelling of 2170023 in words is "two million, one hundred seventy thousand, twenty-three".