2217485 has 16 divisors (see below), whose sum is σ = 2827440. Its totient is φ = 1666560.

The previous prime is 2217473. The next prime is 2217491. The reversal of 2217485 is 5847122.

It can be written as a sum of positive squares in 8 ways, for example, as 218089 + 1999396 = 467^2 + 1414^2 .

It is not a de Polignac number, because 2217485 - 2⁶ = 2217421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

2217485 is a Rhonda number in base 10.

Its product of digits (4480) is a multiple of the sum of its prime divisors (448).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5759 + ... + 6131.

It is an arithmetic number, because the mean of its divisors is an integer number (176715).

2^2217485 is an apocalyptic number.

It is an amenable number.

2217485 is a deficient number, since it is larger than the sum of its proper divisors (609955).

2217485 is a wasteful number, since it uses less digits than its factorization.

2217485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448.

The product of its digits is 4480, while the sum is 29.

The square root of 2217485 is about 1489.1222246679. The cubic root of 2217485 is about 130.4027940799.

The spelling of 2217485 in words is "two million, two hundred seventeen thousand, four hundred eighty-five".