220760447 has 4 divisors (see below), whose sum is σ = 222946296. Its totient is φ = 218574600.

The previous prime is 220760429. The next prime is 220760459. The reversal of 220760447 is 744067022.

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 220760447 - 2²⁴ = 203983231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220760467) 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, 1092773 + ... + 1092974.

It is an arithmetic number, because the mean of its divisors is an integer number (55736574).

Almost surely, 2^220760447 is an apocalyptic number.

220760447 is a deficient number, since it is larger than the sum of its proper divisors (2185849).

220760447 is a wasteful number, since it uses less digits than its factorization.

220760447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185848.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 220760447 is about 14858.0095234860. The cubic root of 220760447 is about 604.3758305597.

The spelling of 220760447 in words is "two hundred twenty million, seven hundred sixty thousand, four hundred forty-seven".