426821413 has 2 divisors, whose sum is σ = 426821414. Its totient is φ = 426821412.

The previous prime is 426821411. The next prime is 426821459. The reversal of 426821413 is 314128624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 293025924 + 133795489 = 17118^2 + 11567^2 .

It is a cyclic number.

It is not a de Polignac number, because 426821413 - 2¹ = 426821411 is a prime.

Together with 426821411, 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 (426821411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213410706 + 213410707.

It is an arithmetic number, because the mean of its divisors is an integer number (213410707).

Almost surely, 2^426821413 is an apocalyptic number.

It is an amenable number.

426821413 is a deficient number, since it is larger than the sum of its proper divisors (1).

426821413 is an equidigital number, since it uses as much as digits as its factorization.

426821413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

The square root of 426821413 is about 20659.6566525197. The cubic root of 426821413 is about 752.9198257758.

The spelling of 426821413 in words is "four hundred twenty-six million, eight hundred twenty-one thousand, four hundred thirteen".