223994417 has 4 divisors (see below), whose sum is σ = 224827380. Its totient is φ = 223161456.

The previous prime is 223994387. The next prime is 223994423. The reversal of 223994417 is 714499322.

223994417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10863616 + 213130801 = 3296^2 + 14599^2 .

It is a cyclic number.

It is not a de Polignac number, because 223994417 - 2⁸ = 223994161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223994117) 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, 416078 + ... + 416615.

It is an arithmetic number, because the mean of its divisors is an integer number (56206845).

Almost surely, 2^223994417 is an apocalyptic number.

It is an amenable number.

223994417 is a deficient number, since it is larger than the sum of its proper divisors (832963).

223994417 is an equidigital number, since it uses as much as digits as its factorization.

223994417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832962.

The product of its digits is 108864, while the sum is 41.

The square root of 223994417 is about 14966.4430309944. The cubic root of 223994417 is about 607.3127487153.

The spelling of 223994417 in words is "two hundred twenty-three million, nine hundred ninety-four thousand, four hundred seventeen".