220473899 has 2 divisors, whose sum is σ = 220473900. Its totient is φ = 220473898.

The previous prime is 220473887. The next prime is 220473907. The reversal of 220473899 is 998374022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220473899 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (220473839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110236949 + 110236950.

It is an arithmetic number, because the mean of its divisors is an integer number (110236950).

Almost surely, 2^220473899 is an apocalyptic number.

220473899 is a deficient number, since it is larger than the sum of its proper divisors (1).

220473899 is an equidigital number, since it uses as much as digits as its factorization.

220473899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 220473899 is about 14848.3635125222. The cubic root of 220473899 is about 604.1142232043.

The spelling of 220473899 in words is "two hundred twenty million, four hundred seventy-three thousand, eight hundred ninety-nine".