426850397 has 2 divisors, whose sum is σ = 426850398. Its totient is φ = 426850396.

The previous prime is 426850363. The next prime is 426850453. The reversal of 426850397 is 793058624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283114276 + 143736121 = 16826^2 + 11989^2 .

It is a cyclic number.

It is not a de Polignac number, because 426850397 - 2²⁰ = 425801821 is a prime.

It is a super-3 number, since 3×426850397³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426850337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213425198 + 213425199.

It is an arithmetic number, because the mean of its divisors is an integer number (213425199).

Almost surely, 2^426850397 is an apocalyptic number.

It is an amenable number.

426850397 is a deficient number, since it is larger than the sum of its proper divisors (1).

426850397 is an equidigital number, since it uses as much as digits as its factorization.

426850397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 426850397 is about 20660.3581043505. The cubic root of 426850397 is about 752.9368681371.

The spelling of 426850397 in words is "four hundred twenty-six million, eight hundred fifty thousand, three hundred ninety-seven".