426780373 has 2 divisors, whose sum is σ = 426780374. Its totient is φ = 426780372.

The previous prime is 426780371. The next prime is 426780383. The reversal of 426780373 is 373087624.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216472369 + 210308004 = 14713^2 + 14502^2 .

It is a cyclic number.

It is not a de Polignac number, because 426780373 - 2¹ = 426780371 is a prime.

Together with 426780371, 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 (426780371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213390186 + 213390187.

It is an arithmetic number, because the mean of its divisors is an integer number (213390187).

Almost surely, 2^426780373 is an apocalyptic number.

It is an amenable number.

426780373 is a deficient number, since it is larger than the sum of its proper divisors (1).

426780373 is an equidigital number, since it uses as much as digits as its factorization.

426780373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 426780373 is about 20658.6633885157. The cubic root of 426780373 is about 752.8956932626.

The spelling of 426780373 in words is "four hundred twenty-six million, seven hundred eighty thousand, three hundred seventy-three".