425878 has 8 divisors (see below), whose sum is σ = 659520. Its totient is φ = 206040.

The previous prime is 425869. The next prime is 425879. The reversal of 425878 is 878524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 4 + 2⁴ + 8² + 5⁸ + 7⁴ + 8⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425879) 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 in 3 ways as a sum of consecutive naturals, for example, 3373 + ... + 3496.

It is an arithmetic number, because the mean of its divisors is an integer number (82440).

2⁴²⁵⁸⁷⁸ is an apocalyptic number.

425878 is a deficient number, since it is larger than the sum of its proper divisors (233642).

425878 is a wasteful number, since it uses less digits than its factorization.

425878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6902.

The product of its digits is 17920, while the sum is 34.

The square root of 425878 is about 652.5932883504. The cubic root of 425878 is about 75.2364684668.

The spelling of 425878 in words is "four hundred twenty-five thousand, eight hundred seventy-eight".