413888221 has 2 divisors, whose sum is σ = 413888222. Its totient is φ = 413888220.

The previous prime is 413888219. The next prime is 413888231. The reversal of 413888221 is 122888314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 350064100 + 63824121 = 18710^2 + 7989^2 .

It is a cyclic number.

It is not a de Polignac number, because 413888221 - 2¹ = 413888219 is a prime.

Together with 413888219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (413888231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206944110 + 206944111.

It is an arithmetic number, because the mean of its divisors is an integer number (206944111).

Almost surely, 2^413888221 is an apocalyptic number.

It is an amenable number.

413888221 is a deficient number, since it is larger than the sum of its proper divisors (1).

413888221 is an equidigital number, since it uses as much as digits as its factorization.

413888221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24576, while the sum is 37.

The square root of 413888221 is about 20344.2429448726. The cubic root of 413888221 is about 745.2369085752.

The spelling of 413888221 in words is "four hundred thirteen million, eight hundred eighty-eight thousand, two hundred twenty-one".