220893047 has 4 divisors (see below), whose sum is σ = 222957576. Its totient is φ = 218828520.

The previous prime is 220893041. The next prime is 220893061. The reversal of 220893047 is 740398022.

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 220893047 - 2⁶ = 220892983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220892998 and 220893016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220893041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032104 + ... + 1032317.

It is an arithmetic number, because the mean of its divisors is an integer number (55739394).

Almost surely, 2^220893047 is an apocalyptic number.

220893047 is a deficient number, since it is larger than the sum of its proper divisors (2064529).

220893047 is a wasteful number, since it uses less digits than its factorization.

220893047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064528.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 220893047 is about 14862.4710933277. The cubic root of 220893047 is about 604.4968126712.

The spelling of 220893047 in words is "two hundred twenty million, eight hundred ninety-three thousand, forty-seven".