2172933 has 16 divisors (see below), whose sum is σ = 3679360. Its totient is φ = 1241568.

The previous prime is 2172917. The next prime is 2172943. The reversal of 2172933 is 3392712.

It is not a de Polignac number, because 2172933 - 2⁴ = 2172917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

2172933 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2172897 and 2172906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5560 + ... + 5937.

It is an arithmetic number, because the mean of its divisors is an integer number (229960).

2^2172933 is an apocalyptic number.

It is an amenable number.

2172933 is a deficient number, since it is larger than the sum of its proper divisors (1506427).

2172933 is a wasteful number, since it uses less digits than its factorization.

2172933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11513 (or 11507 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 2172933 is about 1474.0871751698. The cubic root of 2172933 is about 129.5235617499.

The spelling of 2172933 in words is "two million, one hundred seventy-two thousand, nine hundred thirty-three".