421710049 has 2 divisors, whose sum is σ = 421710050. Its totient is φ = 421710048.

The previous prime is 421710013. The next prime is 421710059. The reversal of 421710049 is 940017124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 352237824 + 69472225 = 18768^2 + 8335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421710049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421709999 and 421710026.

It is not a weakly prime, because it can be changed into another prime (421710059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210855024 + 210855025.

It is an arithmetic number, because the mean of its divisors is an integer number (210855025).

Almost surely, 2^421710049 is an apocalyptic number.

It is an amenable number.

421710049 is a deficient number, since it is larger than the sum of its proper divisors (1).

421710049 is an equidigital number, since it uses as much as digits as its factorization.

421710049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 421710049 is about 20535.5800745925. The cubic root of 421710049 is about 749.9022385167.

The spelling of 421710049 in words is "four hundred twenty-one million, seven hundred ten thousand, forty-nine".