2215712 has 24 divisors (see below), whose sum is σ = 4619916. Its totient is φ = 1042432.

The previous prime is 2215699. The next prime is 2215777. The reversal of 2215712 is 2175122.

2215712 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 2 ways, for example, as 2202256 + 13456 = 1484^2 + 116^2 .

It is a super-3 number, since 3×2215712³ = 32633314321811472384, which contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1493 + ... + 2580.

2^2215712 is an apocalyptic number.

It is an amenable number.

2215712 is an abundant number, since it is smaller than the sum of its proper divisors (2404204).

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

2215712 is a wasteful number, since it uses less digits than its factorization.

2215712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100 (or 4092 counting only the distinct ones).

The product of its digits is 280, while the sum is 20.

The square root of 2215712 is about 1488.5267884724. The cubic root of 2215712 is about 130.3680301016.

The spelling of 2215712 in words is "two million, two hundred fifteen thousand, seven hundred twelve".