2217633 has 32 divisors (see below), whose sum is σ = 3525120. Its totient is φ = 1224960.

The previous prime is 2217617. The next prime is 2217641. The reversal of 2217633 is 3367122.

It is not a de Polignac number, because 2217633 - 2⁴ = 2217617 is a prime.

It is a super-2 number, since 2×2217633² = 9835792245378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2217643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33066 + ... + 33132.

It is an arithmetic number, because the mean of its divisors is an integer number (110160).

2^2217633 is an apocalyptic number.

It is an amenable number.

2217633 is a deficient number, since it is larger than the sum of its proper divisors (1307487).

2217633 is a wasteful number, since it uses less digits than its factorization.

2217633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157.

The product of its digits is 1512, while the sum is 24.

The square root of 2217633 is about 1489.1719175434. The cubic root of 2217633 is about 130.4056951419.

It can be divided in two parts, 2217 and 633, that added together give a triangular number (2850 = T₇₅).

The spelling of 2217633 in words is "two million, two hundred seventeen thousand, six hundred thirty-three".