2215489 has 8 divisors (see below), whose sum is σ = 2303840. Its totient is φ = 2128896.

The previous prime is 2215487. The next prime is 2215501. The reversal of 2215489 is 9845122.

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

It is a cyclic number.

It is not a de Polignac number, because 2215489 - 2¹ = 2215487 is a prime.

It is a d-powerful number, because it can be written as 2 + 2⁷ + 1 + 5⁹ + 4⁹ + 8 + 9² .

It is a Duffinian number.

2215489 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2215489.

It is not an unprimeable number, because it can be changed into a prime (2215487) 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, 2497 + ... + 3265.

It is an arithmetic number, because the mean of its divisors is an integer number (287980).

2^2215489 is an apocalyptic number.

It is an amenable number.

2215489 is a deficient number, since it is larger than the sum of its proper divisors (88351).

2215489 is an equidigital number, since it uses as much as digits as its factorization.

2215489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879.

The product of its digits is 5760, while the sum is 31.

The square root of 2215489 is about 1488.4518803105. The cubic root of 2215489 is about 130.3636563313.

It can be divided in two parts, 2215 and 489, that added together give a square (2704 = 52²).

The spelling of 2215489 in words is "two million, two hundred fifteen thousand, four hundred eighty-nine".