421414057 has 2 divisors, whose sum is σ = 421414058. Its totient is φ = 421414056.

The previous prime is 421414013. The next prime is 421414069. The reversal of 421414057 is 750414124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419594256 + 1819801 = 20484^2 + 1349^2 .

It is a cyclic number.

It is not a de Polignac number, because 421414057 - 2¹¹ = 421412009 is a prime.

It is not a weakly prime, because it can be changed into another prime (421414087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210707028 + 210707029.

It is an arithmetic number, because the mean of its divisors is an integer number (210707029).

Almost surely, 2^421414057 is an apocalyptic number.

It is an amenable number.

421414057 is a deficient number, since it is larger than the sum of its proper divisors (1).

421414057 is an equidigital number, since it uses as much as digits as its factorization.

421414057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 421414057 is about 20528.3720007213. The cubic root of 421414057 is about 749.7267490499.

The spelling of 421414057 in words is "four hundred twenty-one million, four hundred fourteen thousand, fifty-seven".