678063132 has 36 divisors (see below), whose sum is σ = 1746337320. Its totient is φ = 221755872.

The previous prime is 678063131. The next prime is 678063137. The reversal of 678063132 is 231360876.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×678063132² = 919539221955298848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678063131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175782 + ... + 179597.

It is an arithmetic number, because the mean of its divisors is an integer number (48509370).

Almost surely, 2^678063132 is an apocalyptic number.

It is an amenable number.

678063132 is an abundant number, since it is smaller than the sum of its proper divisors (1068274188).

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

678063132 is a wasteful number, since it uses less digits than its factorization.

678063132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355442 (or 355437 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 678063132 is about 26039.6453892905. The cubic root of 678063132 is about 878.5302307981.

The spelling of 678063132 in words is "six hundred seventy-eight million, sixty-three thousand, one hundred thirty-two".