414919721 has 2 divisors, whose sum is σ = 414919722. Its totient is φ = 414919720.

The previous prime is 414919667. The next prime is 414919723. The reversal of 414919721 is 127919414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393427225 + 21492496 = 19835^2 + 4636^2 .

It is a cyclic number.

It is not a de Polignac number, because 414919721 - 2¹⁰ = 414918697 is a prime.

It is a Sophie Germain prime.

Together with 414919723, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (414919723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207459860 + 207459861.

It is an arithmetic number, because the mean of its divisors is an integer number (207459861).

Almost surely, 2^414919721 is an apocalyptic number.

It is an amenable number.

414919721 is a deficient number, since it is larger than the sum of its proper divisors (1).

414919721 is an equidigital number, since it uses as much as digits as its factorization.

414919721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 414919721 is about 20369.5783216050. The cubic root of 414919721 is about 745.8554927851.

The spelling of 414919721 in words is "four hundred fourteen million, nine hundred nineteen thousand, seven hundred twenty-one".