2217346984 has 8 divisors (see below), whose sum is σ = 4157525610. Its totient is φ = 1108673488.

The previous prime is 2217346961. The next prime is 2217346991. The reversal of 2217346984 is 4896437122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1925278884 + 292068100 = 43878^2 + 17090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138584179 + ... + 138584194.

Almost surely, 2^2217346984 is an apocalyptic number.

It is an amenable number.

2217346984 is a deficient number, since it is larger than the sum of its proper divisors (1940178626).

2217346984 is a wasteful number, since it uses less digits than its factorization.

2217346984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277168379 (or 277168375 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 2217346984 is about 47088.7139769181. The cubic root of 2217346984 is about 1304.0008860571. Note that the first 3 decimals are identical.

The spelling of 2217346984 in words is "two billion, two hundred seventeen million, three hundred forty-six thousand, nine hundred eighty-four".