678896425 has 12 divisors (see below), whose sum is σ = 851976720. Its totient is φ = 536571920.

The previous prime is 678896419. The next prime is 678896431. The reversal of 678896425 is 524698876.

It is an interprime number because it is at equal distance from previous prime (678896419) and next prime (678896431).

It is not a de Polignac number, because 678896425 - 2²⁵ = 645341993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161515 + ... + 165664.

It is an arithmetic number, because the mean of its divisors is an integer number (70998060).

Almost surely, 2^678896425 is an apocalyptic number.

It is an amenable number.

678896425 is a deficient number, since it is larger than the sum of its proper divisors (173080295).

678896425 is a wasteful number, since it uses less digits than its factorization.

678896425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327272 (or 327267 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The square root of 678896425 is about 26055.6409439492. The cubic root of 678896425 is about 878.8899679045.

The spelling of 678896425 in words is "six hundred seventy-eight million, eight hundred ninety-six thousand, four hundred twenty-five".