2217362987 has 8 divisors (see below), whose sum is σ = 2541037056. Its totient is φ = 1895415912.

The previous prime is 2217362969. The next prime is 2217363059. The reversal of 2217362987 is 7892637122.

It is a happy number.

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 2217362987 - 2²⁴ = 2200585771 is a prime.

It is a super-2 number, since 2×2217362987² = 9833397232235124338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2217362687) 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, 428993 + ... + 434130.

It is an arithmetic number, because the mean of its divisors is an integer number (317629632).

Almost surely, 2^2217362987 is an apocalyptic number.

2217362987 is a deficient number, since it is larger than the sum of its proper divisors (323674069).

2217362987 is an equidigital number, since it uses as much as digits as its factorization.

2217362987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863497.

The product of its digits is 508032, while the sum is 47.

The square root of 2217362987 is about 47088.8839005556. The cubic root of 2217362987 is about 1304.0040231208.

The spelling of 2217362987 in words is "two billion, two hundred seventeen million, three hundred sixty-two thousand, nine hundred eighty-seven".