220871799 has 8 divisors (see below), whose sum is σ = 327217520. Its totient is φ = 147247848.

The previous prime is 220871773. The next prime is 220871821. The reversal of 220871799 is 997178022.

It is not a de Polignac number, because 220871799 - 2⁷ = 220871671 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 (220871719) 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, 4090192 + ... + 4090245.

It is an arithmetic number, because the mean of its divisors is an integer number (40902190).

Almost surely, 2^220871799 is an apocalyptic number.

220871799 is a deficient number, since it is larger than the sum of its proper divisors (106345721).

220871799 is an equidigital number, since it uses as much as digits as its factorization.

220871799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8180446 (or 8180440 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 220871799 is about 14861.7562555709. The cubic root of 220871799 is about 604.4774295953.

The spelling of 220871799 in words is "two hundred twenty million, eight hundred seventy-one thousand, seven hundred ninety-nine".