425909387 has 2 divisors, whose sum is σ = 425909388. Its totient is φ = 425909386.

The previous prime is 425909369. The next prime is 425909413. The reversal of 425909387 is 783909524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425909387 - 2⁸ = 425909131 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (425909357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212954693 + 212954694.

It is an arithmetic number, because the mean of its divisors is an integer number (212954694).

Almost surely, 2^425909387 is an apocalyptic number.

425909387 is a deficient number, since it is larger than the sum of its proper divisors (1).

425909387 is an equidigital number, since it uses as much as digits as its factorization.

425909387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 425909387 is about 20637.5722167119. The cubic root of 425909387 is about 752.3831671832.

The spelling of 425909387 in words is "four hundred twenty-five million, nine hundred nine thousand, three hundred eighty-seven".