220736933 has 4 divisors (see below), whose sum is σ = 220870860. Its totient is φ = 220603008.

The previous prime is 220736917. The next prime is 220736947. The reversal of 220736933 is 339637022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 339637022 = 2 ⋅169818511.

It can be written as a sum of positive squares in 2 ways, for example, as 170511364 + 50225569 = 13058^2 + 7087^2 .

It is a cyclic number.

It is not a de Polignac number, because 220736933 - 2⁴ = 220736917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220736893 and 220736902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220736953) 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 3 ways as a sum of consecutive naturals, for example, 64460 + ... + 67797.

It is an arithmetic number, because the mean of its divisors is an integer number (55217715).

Almost surely, 2^220736933 is an apocalyptic number.

It is an amenable number.

220736933 is a deficient number, since it is larger than the sum of its proper divisors (133927).

220736933 is a wasteful number, since it uses less digits than its factorization.

220736933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133926.

The product of its (nonzero) digits is 40824, while the sum is 35.

The square root of 220736933 is about 14857.2182120342. The cubic root of 220736933 is about 604.3543717068.

The spelling of 220736933 in words is "two hundred twenty million, seven hundred thirty-six thousand, nine hundred thirty-three".