220879723 has 2 divisors, whose sum is σ = 220879724. Its totient is φ = 220879722.

The previous prime is 220879717. The next prime is 220879739. The reversal of 220879723 is 327978022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220879723 - 2¹⁷ = 220748651 is a prime.

It is not a weakly prime, because it can be changed into another prime (220849723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110439861 + 110439862.

It is an arithmetic number, because the mean of its divisors is an integer number (110439862).

Almost surely, 2^220879723 is an apocalyptic number.

220879723 is a deficient number, since it is larger than the sum of its proper divisors (1).

220879723 is an equidigital number, since it uses as much as digits as its factorization.

220879723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 220879723 is about 14862.0228434759. The cubic root of 220879723 is about 604.4846582560.

The spelling of 220879723 in words is "two hundred twenty million, eight hundred seventy-nine thousand, seven hundred twenty-three".