220396723 has 4 divisors (see below), whose sum is σ = 227996640. Its totient is φ = 212796808.

The previous prime is 220396717. The next prime is 220396727. The reversal of 220396723 is 327693022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220396723 - 2⁵ = 220396691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220396727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3799915 + ... + 3799972.

It is an arithmetic number, because the mean of its divisors is an integer number (56999160).

Almost surely, 2^220396723 is an apocalyptic number.

220396723 is a deficient number, since it is larger than the sum of its proper divisors (7599917).

220396723 is an equidigital number, since it uses as much as digits as its factorization.

220396723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7599916.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 220396723 is about 14845.7644801472. The cubic root of 220396723 is about 604.0437257279.

The spelling of 220396723 in words is "two hundred twenty million, three hundred ninety-six thousand, seven hundred twenty-three".