2164007 has 4 divisors (see below), whose sum is σ = 2169960. Its totient is φ = 2158056.

The previous prime is 2164003. The next prime is 2164013. The reversal of 2164007 is 7004612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2164007 - 2² = 2164003 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2164007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393 + ... + 3170.

It is an arithmetic number, because the mean of its divisors is an integer number (542490).

2^2164007 is an apocalyptic number.

2164007 is a deficient number, since it is larger than the sum of its proper divisors (5953).

2164007 is an equidigital number, since it uses as much as digits as its factorization.

2164007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5952.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2164007 is about 1471.0564231191. The cubic root of 2164007 is about 129.3459655415.

Adding to 2164007 its reverse (7004612), we get a palindrome (9168619).

The spelling of 2164007 in words is "two million, one hundred sixty-four thousand, seven".