678554332 has 12 divisors (see below), whose sum is σ = 1190228256. Its totient is φ = 338489120.

The previous prime is 678554311. The next prime is 678554333. The reversal of 678554332 is 233455876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678554333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195073 + ... + 198520.

It is an arithmetic number, because the mean of its divisors is an integer number (99185688).

Almost surely, 2^678554332 is an apocalyptic number.

It is an amenable number.

678554332 is a deficient number, since it is larger than the sum of its proper divisors (511673924).

678554332 is a wasteful number, since it uses less digits than its factorization.

678554332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394028 (or 394026 counting only the distinct ones).

The product of its digits is 604800, while the sum is 43.

The square root of 678554332 is about 26049.0754538429. The cubic root of 678554332 is about 878.7423201388.

The spelling of 678554332 in words is "six hundred seventy-eight million, five hundred fifty-four thousand, three hundred thirty-two".