220781327 has 8 divisors (see below), whose sum is σ = 238894320. Its totient is φ = 202829760.

The previous prime is 220781317. The next prime is 220781359. The reversal of 220781327 is 723187022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220781327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220781293 and 220781302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220781317) 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, 37502 + ... + 42987.

It is an arithmetic number, because the mean of its divisors is an integer number (29861790).

Almost surely, 2^220781327 is an apocalyptic number.

220781327 is a deficient number, since it is larger than the sum of its proper divisors (18112993).

220781327 is a wasteful number, since it uses less digits than its factorization.

220781327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80713.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 220781327 is about 14858.7121581919. The cubic root of 220781327 is about 604.3948843496.

The spelling of 220781327 in words is "two hundred twenty million, seven hundred eighty-one thousand, three hundred twenty-seven".