220471673 has 4 divisors (see below), whose sum is σ = 220914000. Its totient is φ = 220029348.

The previous prime is 220471663. The next prime is 220471697. The reversal of 220471673 is 376174022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220471673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220471663) 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, 220415 + ... + 221412.

It is an arithmetic number, because the mean of its divisors is an integer number (55228500).

Almost surely, 2^220471673 is an apocalyptic number.

It is an amenable number.

220471673 is a deficient number, since it is larger than the sum of its proper divisors (442327).

220471673 is an equidigital number, since it uses as much as digits as its factorization.

220471673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442326.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 220471673 is about 14848.2885545776. The cubic root of 220471673 is about 604.1121900644.

The spelling of 220471673 in words is "two hundred twenty million, four hundred seventy-one thousand, six hundred seventy-three".