425478407 has 2 divisors, whose sum is σ = 425478408. Its totient is φ = 425478406.

The previous prime is 425478377. The next prime is 425478409. The reversal of 425478407 is 704874524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425478407 - 2¹⁸ = 425216263 is a prime.

Together with 425478409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425478409) 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, 212739203 + 212739204.

It is an arithmetic number, because the mean of its divisors is an integer number (212739204).

Almost surely, 2^425478407 is an apocalyptic number.

425478407 is a deficient number, since it is larger than the sum of its proper divisors (1).

425478407 is an equidigital number, since it uses as much as digits as its factorization.

425478407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250880, while the sum is 41.

The square root of 425478407 is about 20627.1279387122. The cubic root of 425478407 is about 752.1293013431.

The spelling of 425478407 in words is "four hundred twenty-five million, four hundred seventy-eight thousand, four hundred seven".