426307397 has 2 divisors, whose sum is σ = 426307398. Its totient is φ = 426307396.

The previous prime is 426307379. The next prime is 426307411. The reversal of 426307397 is 793703624.

Together with previous prime (426307379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 293573956 + 132733441 = 17134^2 + 11521^2 .

It is a cyclic number.

It is not a de Polignac number, because 426307397 - 2¹⁰ = 426306373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426307897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213153698 + 213153699.

It is an arithmetic number, because the mean of its divisors is an integer number (213153699).

Almost surely, 2^426307397 is an apocalyptic number.

It is an amenable number.

426307397 is a deficient number, since it is larger than the sum of its proper divisors (1).

426307397 is an equidigital number, since it uses as much as digits as its factorization.

426307397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 41.

The square root of 426307397 is about 20647.2128143244. The cubic root of 426307397 is about 752.6174602057.

The spelling of 426307397 in words is "four hundred twenty-six million, three hundred seven thousand, three hundred ninety-seven".