863425428 has 48 divisors (see below), whose sum is σ = 2127638016. Its totient is φ = 271971040.

The previous prime is 863425363. The next prime is 863425441. The reversal of 863425428 is 824524368.

It is a self number, because there is not a number n which added to its sum of digits gives 863425428.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4063 + ... + 41753.

It is an arithmetic number, because the mean of its divisors is an integer number (44325792).

Almost surely, 2^863425428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863425428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1063819008).

863425428 is an abundant number, since it is smaller than the sum of its proper divisors (1264212588).

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

863425428 is a wasteful number, since it uses less digits than its factorization.

863425428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37804 (or 37802 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The square root of 863425428 is about 29384.1016197535. The cubic root of 863425428 is about 952.2294556131.

The spelling of 863425428 in words is "eight hundred sixty-three million, four hundred twenty-five thousand, four hundred twenty-eight".