2171316 has 24 divisors (see below), whose sum is σ = 5790400. Its totient is φ = 620352.

The previous prime is 2171311. The next prime is 2171329. The reversal of 2171316 is 6131712.

2171316 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2171316² = 9429226343712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2171292 and 2171301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171311) 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, 12841 + ... + 13008.

2^2171316 is an apocalyptic number.

It is an amenable number.

2171316 is an abundant number, since it is smaller than the sum of its proper divisors (3619084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2171316 is a wasteful number, since it uses less digits than its factorization.

2171316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25863 (or 25861 counting only the distinct ones).

The product of its digits is 252, while the sum is 21.

The square root of 2171316 is about 1473.5385980693. The cubic root of 2171316 is about 129.4914252210.

The spelling of 2171316 in words is "two million, one hundred seventy-one thousand, three hundred sixteen".