2172995 has 8 divisors (see below), whose sum is σ = 2844720. Its totient is φ = 1580320.

The previous prime is 2172983. The next prime is 2172997. The reversal of 2172995 is 5992712.

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

It is not a de Polignac number, because 2172995 - 2⁴ = 2172979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2172997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19700 + ... + 19809.

It is an arithmetic number, because the mean of its divisors is an integer number (355590).

2^2172995 is an apocalyptic number.

2172995 is a deficient number, since it is larger than the sum of its proper divisors (671725).

2172995 is a wasteful number, since it uses less digits than its factorization.

2172995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39525.

The product of its digits is 11340, while the sum is 35.

The square root of 2172995 is about 1474.1082049836. The cubic root of 2172995 is about 129.5247936309.

The spelling of 2172995 in words is "two million, one hundred seventy-two thousand, nine hundred ninety-five".