425686844 has 12 divisors (see below), whose sum is σ = 812674968. Its totient is φ = 193494000.

The previous prime is 425686843. The next prime is 425686847. The reversal of 425686844 is 448686524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425686843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4837307 + ... + 4837394.

It is an arithmetic number, because the mean of its divisors is an integer number (67722914).

Almost surely, 2^425686844 is an apocalyptic number.

425686844 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

425686844 is a deficient number, since it is larger than the sum of its proper divisors (386988124).

425686844 is a wasteful number, since it uses less digits than its factorization.

425686844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9674716 (or 9674714 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 47.

The square root of 425686844 is about 20632.1798169752. The cubic root of 425686844 is about 752.2521011369.

The spelling of 425686844 in words is "four hundred twenty-five million, six hundred eighty-six thousand, eight hundred forty-four".