220380679 has 2 divisors, whose sum is σ = 220380680. Its totient is φ = 220380678.

The previous prime is 220380661. The next prime is 220380701. The reversal of 220380679 is 976083022.

220380679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220380679 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220380659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110190339 + 110190340.

It is an arithmetic number, because the mean of its divisors is an integer number (110190340).

Almost surely, 2^220380679 is an apocalyptic number.

220380679 is a deficient number, since it is larger than the sum of its proper divisors (1).

220380679 is an equidigital number, since it uses as much as digits as its factorization.

220380679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 220380679 is about 14845.2241141722. The cubic root of 220380679 is about 604.0290680498.

The spelling of 220380679 in words is "two hundred twenty million, three hundred eighty thousand, six hundred seventy-nine".