678726336 has 28 divisors (see below), whose sum is σ = 1795797272. Its totient is φ = 226242048.

The previous prime is 678726329. The next prime is 678726337. The reversal of 678726336 is 633627876.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (678726337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1767325 + ... + 1767708.

Almost surely, 2^678726336 is an apocalyptic number.

It is an amenable number.

678726336 is an abundant number, since it is smaller than the sum of its proper divisors (1117070936).

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

678726336 is a wasteful number, since it uses less digits than its factorization.

678726336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535048 (or 3535038 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 48.

The square root of 678726336 is about 26052.3767821671. The cubic root of 678726336 is about 878.8165634811.

The spelling of 678726336 in words is "six hundred seventy-eight million, seven hundred twenty-six thousand, three hundred thirty-six".