425785686 has 16 divisors (see below), whose sum is σ = 851947200. Its totient is φ = 141865928.

The previous prime is 425785681. The next prime is 425785709. The reversal of 425785686 is 686587524.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425785681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325 + ... + 29183.

It is an arithmetic number, because the mean of its divisors is an integer number (53246700).

Almost surely, 2^425785686 is an apocalyptic number.

425785686 is an abundant number, since it is smaller than the sum of its proper divisors (426161514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425785686 is a wasteful number, since it uses less digits than its factorization.

425785686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31323.

The product of its digits is 3225600, while the sum is 51.

The square root of 425785686 is about 20634.5750137966. The cubic root of 425785686 is about 752.3103194799.

The spelling of 425785686 in words is "four hundred twenty-five million, seven hundred eighty-five thousand, six hundred eighty-six".