678380508 has 60 divisors (see below), whose sum is σ = 1909849480. Its totient is φ = 208731168.

The previous prime is 678380501. The next prime is 678380509. The reversal of 678380508 is 805083876.

678380508 is a `hidden beast` number, since 67 + 8 + 3 + 80 + 508 = 666.

It is a super-2 number, since 2×678380508² = 920400227268676128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678380501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 76318 + ... + 84741.

Almost surely, 2^678380508 is an apocalyptic number.

It is an amenable number.

678380508 is an abundant number, since it is smaller than the sum of its proper divisors (1231468972).

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

678380508 is a wasteful number, since it uses less digits than its factorization.

678380508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161088 (or 161077 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 678380508 is about 26045.7387685587. The cubic root of 678380508 is about 878.6672784693.

The spelling of 678380508 in words is "six hundred seventy-eight million, three hundred eighty thousand, five hundred eight".