678683532 has 12 divisors (see below), whose sum is σ = 1583594936. Its totient is φ = 226227840.

The previous prime is 678683521. The next prime is 678683561. The reversal of 678683532 is 235386876.

678683532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×678683532² = 921222673215990048, which contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28278469 + ... + 28278492.

Almost surely, 2^678683532 is an apocalyptic number.

It is an amenable number.

678683532 is an abundant number, since it is smaller than the sum of its proper divisors (904911404).

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

678683532 is a wasteful number, since it uses less digits than its factorization.

678683532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56556968 (or 56556966 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The square root of 678683532 is about 26051.5552702713. Note that the first 3 decimals coincide. The cubic root of 678683532 is about 878.7980888505.

The spelling of 678683532 in words is "six hundred seventy-eight million, six hundred eighty-three thousand, five hundred thirty-two".