220544797 has 8 divisors (see below), whose sum is σ = 248891040. Its totient is φ = 193581360.

The previous prime is 220544789. The next prime is 220544833. The reversal of 220544797 is 797445022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220544797 - 2³ = 220544789 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 (220544747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345363 + ... + 346000.

It is an arithmetic number, because the mean of its divisors is an integer number (31111380).

Almost surely, 2^220544797 is an apocalyptic number.

It is an amenable number.

220544797 is a deficient number, since it is larger than the sum of its proper divisors (28346243).

220544797 is a wasteful number, since it uses less digits than its factorization.

220544797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691403.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 220544797 is about 14850.7507217649. The cubic root of 220544797 is about 604.1789714582.

The spelling of 220544797 in words is "two hundred twenty million, five hundred forty-four thousand, seven hundred ninety-seven".