220086929 has 2 divisors, whose sum is σ = 220086930. Its totient is φ = 220086928.

The previous prime is 220086917. The next prime is 220086961. The reversal of 220086929 is 929680022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141729025 + 78357904 = 11905^2 + 8852^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220086929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220086892 and 220086901.

It is not a weakly prime, because it can be changed into another prime (220088929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110043464 + 110043465.

It is an arithmetic number, because the mean of its divisors is an integer number (110043465).

Almost surely, 2^220086929 is an apocalyptic number.

It is an amenable number.

220086929 is a deficient number, since it is larger than the sum of its proper divisors (1).

220086929 is an equidigital number, since it uses as much as digits as its factorization.

220086929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 220086929 is about 14835.3270607695. The cubic root of 220086929 is about 603.7605744097.

The spelling of 220086929 in words is "two hundred twenty million, eighty-six thousand, nine hundred twenty-nine".