2217087 has 6 divisors (see below), whose sum is σ = 3202472. Its totient is φ = 1478052.

The previous prime is 2217073. The next prime is 2217101. The reversal of 2217087 is 7807122.

It is an interprime number because it is at equal distance from previous prime (2217073) and next prime (2217101).

It is not a de Polignac number, because 2217087 - 2⁶ = 2217023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2217087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123163 + ... + 123180.

2^2217087 is an apocalyptic number.

2217087 is a deficient number, since it is larger than the sum of its proper divisors (985385).

2217087 is a wasteful number, since it uses less digits than its factorization.

2217087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246349 (or 246346 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 2217087 is about 1488.9885828978. The cubic root of 2217087 is about 130.3949919351.

The spelling of 2217087 in words is "two million, two hundred seventeen thousand, eighty-seven".