220706933 has 2 divisors, whose sum is σ = 220706934. Its totient is φ = 220706932.

The previous prime is 220706929. The next prime is 220706947. The reversal of 220706933 is 339607022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189145009 + 31561924 = 13753^2 + 5618^2 .

It is a cyclic number.

It is not a de Polignac number, because 220706933 - 2² = 220706929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220706933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220706923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110353466 + 110353467.

It is an arithmetic number, because the mean of its divisors is an integer number (110353467).

Almost surely, 2^220706933 is an apocalyptic number.

It is an amenable number.

220706933 is a deficient number, since it is larger than the sum of its proper divisors (1).

220706933 is an equidigital number, since it uses as much as digits as its factorization.

220706933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 220706933 is about 14856.2085674643. The cubic root of 220706933 is about 604.3269915243.

The spelling of 220706933 in words is "two hundred twenty million, seven hundred six thousand, nine hundred thirty-three".